期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN:2347-6710
电子版ISSN:2319-8753
出版年度:2014
卷号:3
期号:2
页码:9664
出版社:S&S Publications
摘要:In this paper the composting process was studied for Municipal Solid Wastes in order to characterize theessential plant nutrients and heavy metals during the degradation process. The process was studied in pre-monsoon,monsoon and post-monsoon seasons and samples were collected during 10th to 60th days of composting process.Primary macronutrients like nitrogen, phosphorus, potassium, secondary macronutrients calcium, magnesium andmicronutrients/trace minerals like chlorine, manganese, iron, zinc, copper, molybdenum, nickel were analyzed. Heavymetals like lead, cadmium, chromium, were analyzed by atomic absorption spectrophotometer. From the study, theconcentrations of essential plant nutrients were found to be under the limits of Ohai- EPA standards and CanadianCouncil of Ministers of the Environment (CCME) standards. Heavy metals were also found in trace quantities andhumification process caused decrease in heavy metal concentration. From the present study, it was observed thatcomposting process was faster during monsoon season and compost produced was better source of plant nutrients.
关键词:Solid waste; Essential nutrients; Heavy metals; Composting; Ohai- EPA and CCME standards.