فهرست مطالب رضا مرندی

The cement-based stabilization/solidification (S/S) method is widely used in modifying soils polluted by heavy metals (HMs), although it may face technical, economic, and environmental limitations. Therefore, the present work was designed to investigate the effectiveness of a type of geopolymer based on the steel slag (SGP) and its combination with microparticles of zeolite (SGPZ), compared to cement (as a traditional additive), in enhancing the stability of S/S products. In so doing, different percentages (0 to 250 mg/g-soil) of SGP, SGPZ, and sole cement were separately added to the S/S samples containing different concentrations of lead (including 5000, 10000, 20000 and 40000 mg/kg-soil). After adequate curing (up to 28 days), a set of macro and micro scale experiments were performed to assess the long-term performance of the amended soil samples using a laboratory accelerated aging procedure that simulated 25, 50, 75 and 100 years of exposure to the acid rain and wet and dry (W-D) cycles in the field. It was found that, while low amounts of cement (PC) would greatly reduce the initial bioavailability of pollution in the pore fluid of soil, increasing the contact time of the PC-treated specimens upon harsh conditions, especially in the presence of high level of Pb, would dramatically diminish the efficiency of the precipitation mechanism as well as the degree of encapsulation process which play a significant role in increasing the ability of S/S sample to release the toxic ions stabilized/solidified previously. At simulated 100 years, the toxicity characteristic leaching procedure leached Pb from the PC-treated sample with 250 mg/g-soil binder would exceed the permitted threshold of pollution leaching (≥ 5 mg/L) by 508%, indicating that meeting the S/S regulation limits requires a large consumption of cement. The study showed that, unlike treatment conditions with the same level of PC, the use of novel cement-free S/S binders (especially SGPZ) would significantly limit the negative influences of the environmental changes on HM remobilization risks. In addition, the mechanical characteristics of those series of samples were sometimes up to 1.4 times higher than that of the soil modified with cement alone. Based on the X-ray diffraction (XRD) patterns and scanning electron microscope (SEM) images, this enhancement can be mainly due to i) reduction in the adverse HM-binder interactions, ii) intensification in the level of hydration reactions, iii) formation of secondary complex hydrated phases (e.g., Hydrotalcite: Mg6Al2CO3(OH)16.4H2O), and iv) creation of a three-dimensional network of solidification in the system containing geopolymer, wrapping the matrix of S/S products against the structure disintegration upon contact to the aggressive environments. Therefore, under the destroying impacts of acid attack and W-D scenario, adding 25% SGPZ composite could pass the S/S regulation limits. In general, based on the obtained results, the use of geopolymer (especially containing zeolite) is suggested as an effective and environmentally friendly alternative for sustainable soil improvement, even with the high contents of HM ions. Following the USEPA and UKAE standards to achieve the safe S/S performance, the optimal dosage of GP binder was determined to be approximately 6 mg/g-soil per 1 g/kg of lead in the sample.

Unit risk management is a critical component of gas refining management, as risks that are not well-managed may lead to trip production failures. The present study aimed to provide a structural model for investigating the role and effect of different variables on stopping the gas production process in the gas refinery.

This study was a retrospective cross-sectional and systematic analysis, which was carried out on key risks in the trip gas sweetening unit in a gas refinery industry located in Asaluyeh, Iran. The systems analysis was applied by using Fishbone Diagram, and then data modeling was prepared by Structural Equation Modeling (SEM) for an incident that occurred during gas sweetening production. Tools for the data analysis included the SPSS 24 and Smart PLS 2 software.

Results of this research indicate that “Environment Risk” with a path coefficient of 0.943 and T- Value of 103.791; “Cost Risk” with a path coefficient of 0.937 and T- Value of 95.168; “Implementation of management system Risk” with a path coefficient of 0.847 and T- Value of 35.23; “Accident Risk” with path coefficient of 0.577 and T- Value of 25.410; “Time Risk” with path coefficient of 0.758 and T- Value of 15.121; “Human Error Risk” with path coefficient of 0.712 and T- Value of 11.215 had the most important coefficients of the paths respectively, that are effective in stopping production concerning other risks. Also, by comparing the path coefficients of the risks we can see that the impact of each of the risks on stopping production is different.

The findings of the present study revealed that a combination of variables can affect stopping production in the gas industry. Therefore, the role of these risks in losses in the refinery system should be investigated.

This is a descriptive correlation and data collection based research for practical purposes. The data collection was done by library research, and field studies were performed using statistical population and distribution of questionnaires. The questionnaire was used using Likert 5 option scale and ranking levels with a reliability of 0.8 and face-to-face validation. The sample size was selected based on the qualitative research and structural equation model from Morgan table was used - a statistical population of 100 people with a confidence level of 99% (99 samples).The information from the questionnaire was transferred from SPSS software to AMOS software, after designing the structural equation model (confirmatory path analysis) and after applying the latest corrections to the confirmatory factor analysis model, the results of structural equation modeling, including standardized regression coefficients and multiple power correlation coefficients were reported. The descriptive findings of the variables showed that from the eight most obvious variables (technical, scientific, political, financial, cultural, social, time and place), the cultural factor had the highest mean (according to the Likert spectrum), and the lowest mean was related to scientific factors.Normality of variables was reported by measuring their skew and elongation. The first order factor analysis was performed to examine the factor loads of variables and the fitting of the model. Because of the desirability of 3 of the 5 indexes reported, the fitting of result showed that the variables are desirable. Structural model findings, confirm that water resource control on water footprint-water footprint calculations affects socio-economic and environmental development.The significance of the paths of variables is significantly more than the critical ratio index (CR) of the water footprint with socioeconomic factors with CR of 5.015. Considering the research objectives and the proposed model, it can be concluded that control of water resources directly depends on numerous factors of technical, scientific, political, social, economic, cultural, time and place and influence in tracking water calculations. Affected by these issues, macroeconomic issues and sustainable socioeconomic development are also affected by water footprint calculations. By examining past studies of water footprints, it is clear that the research can be incomplete, especially in the internal sector, when basically the nature of the water footprint measurement has not been done specifically in accordance with international standardsand in fact no research has been done accordingly so far.Also, in the the reviewed articles, most of the concerns raised are the lack of proper management of water resources, addressing the economic, social, cultural, political and environmental factors separately. The proposed model attempts to compensate for some of the scientific shortcomings and provide a new step in the calculation.

The problem of toxic-metal-contaminated water has become a great environmental concern and presents significant hazards to the public health and economy. In this study, drinking water treatment sludge was activated and used as an efficient, cheap and cost effective sorbent in the removal of Pb (II) ion from water samples. The prepared material was characterized by Fourier transfer infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), surface analysis (BET method) and X-ray fluorescence (XRF) analysis. The effects of various parameters such as the solution pH, adsorption time, adsorbent dosage, and initial metal ion concentration upon adsorption were investigated. Equilibrium isotherm studies were carried out with different initial concentrations of Pb (II), and three models (Langmuir, Freundlich and Temkin isotherms) were utilized to analyze the equilibrium adsorption data. The best adsorption performance was obtained at the following conditions: pH of sample, 7.5; contact time, 15 min; adsorbent dosage, 0.3 g; intitial concentration of Pb (II), 20 mg/L; agitation speed, 200 rpm. The results revealed that the adsorption process obeyed the Langmuir model, with the maximum monolayer capacity (qmax) and the Langmuir constant (KL) calculated as 54.9 mg/g and 0.973 mg/L, respectively. Kinetic studies indicated that the adsorption process followed a pseudo-second-order model based on the obtained R2 values. Comparison study with the other natural adsorbents revealed that the activated sludge has the highest adsorption capacity and provides the lowest adsorption time. Desorption study exhibited that the Pb (II) ions can be desorbed from the adsorbent by 0.25 mol/L HCl solution with a recovery percentage of 98%. The results exhibited that activated sludge is an efficient and cost-effective material for the adsorption of Pb (II).

Analyzing the causes of accidents in order to control and prevent their recurrence is of utmost importance. The aim of this study was to combine the two methods of Fishbone and SCAT to analyze the root cause of the accidents, address them in details, and track them in the depth of organizational structures.

This study analyzed the data about accidents using a Fishbone and SCAT Combined Method. Initially, the interface and root causes obtained by the Fishbone Method, as well as control measures were entered into SCAT cause and effect table. The results of the questionnaires were collected, and the causes of accidents were investigated using the Chi-Square test. Data analysis was done using SPSS software version 24.

The findings indicated that the most important direct cause of the accidents was the the variable related to indoor and outdoor environment of the refinery, and the most important root cause of the accident was “unforeseen economic changes such as changing exchange rate, tax rate”, and “lack of a continuous planning for the staff's training”. Increasing the efficiency of training the staff is the most important control measure suggested. There was also a significant relationship between surface and root causes.

According to the statistical test, a systematic connection between root causes and intermediate causes of the accident were found. The combined method presented in this study can meet the needs of different organizations regarding the causes of accidents in many cases, and is currently one of the most important methods. Therefore, it is suggested to combine the SCAT with other methods to analyze the causes of accidents in refinery plants.

The presence of many synthetic dyes in aqueous solutions can cause carcinogenesis and mutagenicity and affect human health. Reactive Red 198 is one of the types of azo dyes with complex structure, toxic, carcinogenicity, mutagenicity properties, and tolerable in the environment, which is discharged to the environment through the sewage of textile industries. This study was performed to determine the mineralization of 198 reactive red dyes by the hybrid advanced oxidation process UV/US/H2O2/O3 from colored wastewater using central composite design.

In this descriptive-analytical study several factors affecting on dye mineralization process including the presence of ozone gas and ultraviolet rays (UV) as well as the initial dye concentration, Ultrasound (US), contact time, pH, and hydrogen peroxide were investigated. Experimental design and optimization were performed by design of experiment software using central composite design and its optimal conditions were determined.

The maximum dye degradation efficiency of 100% was performed under optimal conditions including initial dye concentration of 200 mg/L, reaction time of 34 minutes, hydrogen peroxide concentration of 27 mg/L and pH=9 in the presence of ozone gas flow, ultraviolet rays and ultrasonic waves. Also, the influence of factors on dye removal including ozone, UV, initial dye concentration, US, contact time, pH, and peroxide were  58.8%, 19.3%, 2.3%, 1.5%, 1.1%, 0.6 %and 0.2 % ,respectively.

UV/US/H2O2/O3 hybrid process with advantages such as performance and high speed can be recommended for wastewater treatment in various industries.

Since removal of dyes causing cancer from colored wastewater before releasing into environment is very important therefore in this study the effective parameters in removal of dye AR 18 with a new organic adsorbent were investigated by combining the two methods (adsorbent) and chemical method (AOPS).

Firstly, a rotary reactor was made up then for each experiment 100mL of sample was exposed to UV ray, H2O2 and extracted carbon from carrot meal. In this study low power UV lamps and in a reactor with capacity of 1.5L were used. Properties of adsorbent were studied and illustrated via TEM, SEM, XRD. Effects of parameters such as pH, UV radiation contact time, concentration of dye and concentration of adsorbent were examined and optimum points of each parameter obtained. Inlet and outlet of dye concentration was measured by spectrophotometer. adsorption Equilibrium and adsorption kinetics with maximum adsorption capacity were measured accordingly.

Physical properties of active magnetite carbon showed that Fe3O4 nanoparticles had average size of 22-90 nm with the BET of 480 m2/g. acid red dye 18 was removed with 99 % efficiency where adsorbent concentration: 1/5gr.L, dye concentration: 25 ppm, pH: 4 and contact time: 80 min. adsorption capacity: 126/98 mg/g and adsorption kinetics is in line with Pseudo-second-order model (R2=0/99, AR 18).

Results of this study showed that using extracted carbon from carrot meal together with UV radiation as a low cost adsorbent, Eco-friendly is significantly effective in dye removal via.

Cyclodextrin (CDs)/polyether black amide (PEBA) polymeric nanostructures are of particular practical importance due to their nature including porosity, biocompatibility and biodegradability as new polymeric nanocomposites. The aim of this research work was to optimize the odour and taste causing algae in drinking water using PEBA/CDs nanoadsorbents. The design of experiments and the effect of experimental parameters on the rate of algae removal was done systematically by Fractional Factorial method. RSM optimization method was used to achieve the highest algae removal performance. FTIR spectroscopy, SEM images, BET technique and mapping analysis were used to characterize these nanostructures. These analyzes showed that the nanoadsorbents synthesized had ideal properties such as homogeneous morphology and fiber size distribution in the nanometer range. In addition, according to data obtained from BET technique, the surface area of the sample was about 840 m2/g. The results of studies on Navicula algae showed that PEBA/CDs polymeric nanoadsorbents can affect the quality of drinking water by reducing the number of algae colonies to 5 colonies. The results of analysis of variance showed that the parameters of dose of polymeric nanoadsorbents, water volume and contact time (Pvalue = 0.000) affect the rate of algal removal. The results showed a reduction in the number of algae colonies by 3 colonies. The use of novel nanostructures as well as the systematic studies used in this study can be used as a new strategy to improve the quality of drinking water.

In the present study, after synthesizing graphene oxide (with hummer method) and carbon nano tube, were modified by sulfonic groups and characterized by FT-IR and SEM analyses. The batch adsorption experiments were carried out to remove the dye crystal violet from aqueous solution. The effects of pH, adsorbent dose, the initial concentration of analyte and time on the adsorption process were studied. The experimental data were fitted with different kinetic models and isotherms. Also, regeneration and reusability of the synthesized adsorbent has been investigated.

Irrigation water quality is a critical aspect of agricultural production especially in terms of human health and the environmental aspects. The aim of this study was to estimate the level of surface runoff and groundwater pollution used in the production of agricultural products in the south of Tehran.

Sampling points included 14 points of surface water collection and disposal network and irrigation canals of agricultural lands and 7 points of underground wells in the 19th district of Tehran. The quality of the collected samples was analyzed for BOD, COD, nitrate, dissolved oxygen, electrical conductivity, ammonium, phosphate, turbidity, total hardness, pH and SAR using WQI software.

The results of Water Quality Index (WQI) showed that the level of surface water pollution in 14 sampling points was moderate to very bad. 57% of surface water points were highly polluted, 36% were relatively bad and 7% were moderate in terms of pollution index.

Agricultural products of areas 3, 4 and 5, if consumed, can endanger the health of consumers. Because the samples collected from these areas had the highest level of contamination. Therefore, in order to manage the challenges and future crises in these areas, within the framework of the environmental assessment program, management solutions are proposed in four groups: planning, implementation and monitoring, monitoring and review.

Incidents are one of the most important causes of damages in an organization often occurring due to a chain of minor and trivial errors. Therefore, recognizing the pattern and root causes of the errors are an important approach in understanding and improving safety management in the industry. This study aimed to identify human errors leading to incidents in a gas refinery using human factors analysis and classification system (HFACS).Methods and Matereals: The present study for conducted for the event of stopping the production of gas extraction in the gas sweetening unit of the refinery. So, a team consisted of six senior refinery engineers, first the analysis of root causes of events with Fishbone Diagram was prepared. Then, by combining the HFACS method and FAHP theory, the probability of occurrence of each of the reasons was analyzed.

Analyzing the worksheets of 128 activities in four levels of HFACS showed, that the highest errors rate were the first level use of Use low-quality equipment (p=6.8%) and Failure to properly analyze budget for overhaul maintenance (p=6.2%), the 2nd level of the sub-group of inadequate supervision of the maintenance supervisor (p=3.59%), the 3rd subgroup of Task-related human factors (p=3.25%) and the 4th sub-category of (p=3.2%) and Inaccuracy of the contractor in completing the checklist Contractor knowledge-based error (p=2.31%) with the most probability impact in trip gas sweetening unit incident.

The results show that errors have various causes, including individual, activity, situational, and organizational errors that require careful planning and management to eliminate or reduce these errors. Increasing the training effectiveness of operators and supervision improvement respectively are the most important measures in decreasing human error-induced incidents in refinery industry maintenance.

The spread of soil oil pollution in the present era due to the use of fossil fuels in industrial areas has adverse effects on human and the environment. In this study we identified native bacteria from oil-contaminated soils to be used to reduce hydrocarbon contaminants.
First, in order to identify and isolate native bacteria in the region, sampling of soils contaminated with petroleum compounds was done in six stations located in Mahshahr Petrochemical Special Economic Zone. Bacterial growth was performed in neutrite broth liquid media. Neutrite agar medium was used to culture bacteria and achieve single colony in solid medium. DNA was extracted to identify bacterial species by polymerase chain reaction (PCR) method. Soil physical and chemical properties were measured to estimate the conditions of the area according to the standard method.
The results of isolation and growth of bacteria and purification, and finally polymerase chain reaction (PCR), and sequencing indicated the presence of two bacterial species in six different stations with a similarity of more than 95% according to the global ranking. According to the results, the percentage of TPH removal in the field by Peseudomons Aeruginosa and Bacillus Nakamurai was 53.50% and, 33.05%, respectively.
Discussion and  Due to the ability of these species to remove TPH, they can be suggested as suitable native species for this region in the removal of contaminated soils.

Heavy metals and dyes are released into the environment by industrial activities and technological development more than natural. Because of their toxicity, they have anomalous effects on the environment and on the health of organisms, especially humans.

In this research, two methods of advanced oxidation and biological adsorption were combined in a single reactor and the pollutants were introduced into the reactor and the percentages of their removal were investigated. . The UV / H2O2 process was used to remove the RBB dye and to remove the manganese ion from a biological adsorbent fixed in sodium alginate. After performing these two processes in the batch system and considering the optimum conditions in the unit reactor, these two processes were combined and the granules were poured into a polyethylene filter and placed inside the reactor embedded in the center of the UV lamp.

According to the results of TOC and COD, it was found that in the case of only UV / H2O2 process, the percent removal of TOC and COD were 35% and 79.5%, respectively, but in the combined condition, the percentage of TOC reduction was 56% and COD It reaches 90.22%.

The results have shown that the removal efficiency both in terms of decolorization and mineralization is negligible when UV, H2O2 or biosorbent are used alone. Among combining AOP with- biological process schemes tested, we found that the UV/H2O2/biosorbent process was the most effective in reducing the COD, color and TOC of decolorization

One of the reuses of wastewater in industries is irrigation of green space. Therefore, with proper treatment and reduction of environmental pollution of wastewater and in compliance with environmental standards, it can be used for irrigation purposes. The present study was aimed to evaluate the performance of Noosh Azar Wastewater Treatment Plant by the online monitoring station in 2016.
This descriptive cross-sectional study was performed at Noosh Azar Waste Water Treatment Plant (WWTP) in Tehran. The effluent outlet parameters include COD, BOD, TSS, TOC, Turbidity, pH and temperature which were measured 12 times/day by the online monitoring station of the refinery according to the standard methods (the Examinations of Water and Wastewater), and reported at the end of each month. Data were entered into SPSS software and analyzed using statistical indices including mean and standard deviation.
The average total of BOD/COD ratio in the wastewater was 0.8. The results of the study showed that the average concentration of COD, BOD and TSS of the wastewater was 1624.91 ±134.85, 1310±75.38 and 283.58± 39.76 mg/L, respectively. The average of total outlet parameters of turbidity, COD, BOD, TSS and TOC were 12.78±2.21, 83.73±12.90, 41.26±6.65, 6.70±2.14, 46.03±7.08 mg/L, and pH=7.80±0.35. The total average of removal efficiencies of COD, BOD and TSS were 93.92±3.62, 96.57±1.002 and 97.57±0.936, respectively.
Regarding the proper performance of the activated sludge system of Noosh Azar Company, the effluent parameters such as COD, BOD, TSS, TOC, turbidity and pH, were in accordance with the standard of the Iranian Environmental Protection Agency for irrigation use. However in order to ensure the quality of the wastewater for reuse, the microbial parameters should also be considered.

Nowadays, increasing public concern have challenged the environmental problem associated with wastewater. Indeed, the removal of contaminates from wastewater is still far away from a satisfactory solution. Different processes are used for the treatment of wastewater. However, adsorption on activated carbon can be an environmentally friendly and economically sound process. In this study, olive-waste activated carbon as was employed as a novel adsorbent for efficient removal of lead (heavy metals). In the removal process the variables; pH, concentration of lead, amount of adsorbent and contact time, were studied on their influence on removal of lead, using one at a time approach, in a batch procedure on removal of lead which used 109 mg/g. Following the investigation of concentration effect, fitting the experimental equilibrium data to numerous conventional isotherm models showed that the Langmuir model with high correlation coefficient and low error analysis (R2=0.998) is more usable to explain the experimental data. The kinetic models were studied and parameters of this model was calculated. First order kinetics was predicted for adsorption with 0.99 error tolerance.

Refineries in the cycle of fuel and energy supplying have an incomparable role. Continuous production with attention to non contamination of environment needs to optimization of wastewater and disposal treatment processes and using of new techniques in wastewater treatment plants. Amount of excess biological sludge in Bandar Abbas refinery is 40-50 ton/month. Estimations show that the cost of sludge management in this plant is about 40-60% of total cost. Addition to disposal of this sludge with oily contaminates maybe cause to damage of environment. For minimization of excess sludge in this research used advanced oxidation processes. Results show that using of hydrogen peroxide in compare with ozonation and peroxone had better results. In optimized condition، amount of excess sludge and COD can reduce up to 73. 33% and 56. 97% respectively.

Considering the development of refining industries, the ability of the treatment of heavy crude oil with high sulfur, salt, heavy metals, and other undesirable conditions, and the severity of environmental standards, the treatment of refinery wastewater and the disposal of remaining sludge is more difficult than before. With the development of wastewater treatment processes, nowadays more attention are paid to advanced oxidation processes (AOPs). In this work, ozonation as an advanced oxidation process is used for the reduction of biological sludge of Bandar Abbas refinery wastewater. Samples of returned sludge to oxidation basin were ozonated for 20-120 minutes with an amount of 0.0516 to 0.6192 mgO3/mgTSS and in each case COD and remained sludge were defined. The results show that ozone can reduce the amount of sludge and COD with an improvement in the settling conditions. The best conditions were in case of ozone injection for 80 minutes at 0.4128 mgO3/mgTSS. This case can reduce the final sludge up to 36.67% and in this condition COD was reduced from 15570mg/l to 8920mg/l with a 42.71% reduction. Considering the monthly production of 40-50 tons of excess sludge in Bandar Abbas refinery, using this procedure can reduce the final sludge up to 18 tons/month with reducing environmental hazards with the minimization of the waste management costs.

The environmental pollution of harmful toxic metals is one of the important issues in the world today. Nickel is one of the toxic heavy metals which if enters into the human body in high concentrations; it will cause skin allergy، heart disease and various cancers. Therefore، there is need to remove Nickel from industrial wastewater. The purpose of this study was firstly to remove nickel from aqueous solutions with synthesized activated carbon from carrot remains and secondly to investigate the effect of variations of the adsorbent particle sizes on the equilibrium time and the removal efficiency. For this purpose، adsorption of Ni (II) ions on the adsorbent was studied in a batch process. Firstly، the activated carbon was prepared from carrot remains with particle sizes between 37 and 300 micrometers. The results showed that the maximum absorption efficiency occurs (100%) at pH of 6. Moreover، it was shown that with decreasing the adsorbent size from 300 to 37 µm، the equilibrium time will decreases from 130 to 20 min. Experimental data was best fitted onto pseudo-second order model. Langmuir and Freundlich isotherms equation were used to fit the adsorption isotherms. It is evident from this study that activated carbon is a suitable material for the uptake of Ni (II) from aqueous solutions.

This paper used the results of a research project entitled biodiversity of inland water fishes of Iran which was carried out from 2005 to 2010. Some 3500 fish specimens were obtained from different basins of Iran by using electrofishing method, cast net, gill net and hook. Using criteria such as size, shape and color, some of them are considered suitable to keep in aquarium. Due to the results 25 species from 11 Genera belong to 4 families Cyprinidae, Cyprinodontidae, Cobitidae and Nemacheilidae are regarded suitable to be introduced as aquarium fishes.

Advanced Oxidation Processes (AOPs) are the effective processes in treatment of the various wastewaters contaminated with hazardous organic pollutants. In this work, decolorization of Acid Blue 74 in the UV/H2O2 process by using a batch photochemical reactor equipped with a 15 W low pressure mercury lamp (Osram) and aeration system as stirrer was studied. At the short time decolorization was complete and follows first order kinetic with respect of dye concentration. The rate of decolorization at the maximum absorption wavelength was monitored with spectrophotometric analysis. Effect of the important parameters such as initial concentration of H2O2, pH and initial concentration of dye on the dye decolorization was studied. It was found that the rate of decolorization increase with increase in H2O2 concentration up to 0.0294 mole.L⁻¹. The great rate of decolorization observed at the pH=3. With increasing the initial concentration of the dye up to 6.43×10-5M, initial reaction rate was increased.

Acid Mine Drainage (AMD) is one of the most important and known environmental pollution made in mining activities. These kinds of water include high concentrations of heavy metal ions such as Fe, Mn, Cu, and Ni. It has affected marines and people life dangerously. Acid Mine Drainage is produced when the Sulphid minerals in water and air combine with each other and particularly when there is a presence of bacteria. In this research we analyze acid mine drainage, removal heavy metals ions (Fe, Cu, Mn) by sludge municipal, wastewater with use of three Sequencing Batch Reactors researches in range pH (4.5, 6.5-7, 7-7.5, 7/5-8) and flow 5ml/min performed. Then identification of the best pH (7.5-8) treatment in flows (5, 30, 60, 120) ml/min is performed, that in flows (5, 30) ml/min of the biggest percentage of removal is observed. The percentage of removal of the heavy metals in flow 5m/min is observed (Fe, Cu, Mn) 100%, 99.18%, 90.88% and in flow 30 ml/min (99.5%, 85.19%, 88.28%) in consequence. Amount of 780 mg/l MLSS in sludge municipal is obtained.