Dtermine the Bio-availability of lead and cadmium Treated With compost Mixed With Wild Radish (Case study: Compost produced by Aq Qala compost factory)

The quality of compost produced is very important in terms of handling and stabilization, which, unfortunately, has not paid much attention to most of our compost plants in our country. In this regard, the purpose of this study was to evaluate the quality of compost produced with the view of measuring heavy metals of lead and cadmium according to Iranian and world standards.For this purpose, the bioavailability of two lead and cadmium pollutants as heavy metal indices in radish overgrowth was measured in 5 treatments of Aq Qala ( Waste Management Organization Of Golestan Province) municipal waste compost in pilot condition. Finally, the amount of indicator elements before and after the growth of radish in plant and soil was evaluated and evaluated.determination of bioavailability of lead and cadmium by radish wildlife species from Boyan night darkness (due to fast growth and index of this plant dark as a plant), in 5 treatments including (control = a), (12.5% b =), (20% = (c, (33% = d), (% 50 = f), compost weight with field soil and in 3 replications under environmental conditions, Was evaluated. and the mean of data was analyzed by SPSS software based on Duncan test (p <5%) and Excel software were compared.The treatment had 50% by weight of compost, limited germination, and early growth was very low so no crop was produced. The best applied treatment was c treatment of 20% by weight of compost with field soil, which resulted in 1.46% increase in Pb uptake compared to control at 1.930 ppm compared to Pb (1,320 ppm). And the rate of cadmium uptake in the plant was 145 ppm, compared to its changes in soil (.340 ppm), .42. The percent reduction showed that it could be related to the results of the plant concentration changes in Duncan's method (at 5% means no significant difference between samples b and c) or because of the play of organic fertilizer which could be reduced. Provide the amount of cadmium absorbed by plant roots. It also had the highest tuber growth performance. The results of adsorption of both pollutants in applied treatments showed that with increasing compost application, lead and cadmium uptake was increased in plant, the highest for lead in d treatment with 195% compared to control and for cadmium in d treatment, 258%, Compared to control.

It seems that radish shoots with high uptake of lead and cadmium may cleanse the soil of these materials and act as a successful biofilter in infected soils due to a one-month growth period. A promising, relatively new technology for removal of heavy metal from contaminated sites is phytoremediation. There are numerous crops such as sunflower (Helianthus annus), maize (Zea mays), mustard (Brassica compestris), barley (Hordeum vulgare), beet (Beta vulgaris), bitter Gourd (Momordica charantia), brinjal (Solanum melongena), cauliflower (Brassica oleracea var. botrytis), chilli (Capsicum annum), coriander (Coriandrum sativum), fenugreek (Trigonella foenum-graecum), garlic (Alium sativum), ivy gourd (Coccinia indica), lufa (Luffa acutangula), lady’s finger (Abelmoschus esculentus), mint (Mentha piperata), radish (Raphanus sativus), spinach (Spinacia oleracea), tomato (Lycopersicom esculentum), and white gourd (Lagenaria vulgaris) used for remediation of heavy metal. The efficiency of the phytoremediation crops depends upon their biomass production and ability of metal accumulation in their harvestable organs. In addition to this there are some biotechnological approaches for enhancing the property of hyper accumulator plant for metal remediation. Various potential remediation techniques are available that can be used to reduce the heavy metal contamination. Research related to relatively new technology should be promoted and emphasized and expanded in developing countries where heavy metal pollution has already touched alarming level. In the above context present review deals with different approaches to reduce the availability of heavy metal from soil to plants.