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Investigating the feasibility of using dried sludge wastewater treatment as fertilizer in urban green space

M. Shahnavaz, A. Gholami

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J. Bio. Env. Sci.4(4), 379-383, April 2014

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Abstract

Today sludge disposal plant is one of the major problems in all countries, both developed and developing, is considered. In recent decades, with the legal restrictions on methods of burning and disposal of sludge on land and sea has arisen, Method of sludge on land as fertilizer is widely considered, However, due to the nutrients in sewage sludge can be used to improve soil, However, due to the risk of pathogenic micro organisms may cause a variety of diseases in humans, The aim of this study was to evaluate the feasibility of using dried sludge wastewater treatment plant in Ahwaz as fertilizer in urban green space with consideration of valid standards. In this regard, the application of chemicals and biological wastewater treatment Chonybeh examined, The results of the tests, including fecal coliform bacteria, total coliform and parasite eggs Environment America Organization standards (EPA) were compared. The results of this study indicate that the chemical properties of the fertilizer nutrients is a reasonable concentration, The only limiting factor of the chemical present in the sample, it is high salinity Installing drains in the area of green space in urban development projects and annual leaching and salt-tolerant plants can be minimized its effects. However, a maximum of microbial fertilizer on microbial USEPA Class B is standard. . This is suggested by the conditions in sewage sludge fertilizer) Co-Composting with composting) plant can be used to produce compost.

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Investigating the feasibility of using dried sludge wastewater treatment as fertilizer in urban green space

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