CONVERTING OF SEWAGE SLUDGE TO VERMICOMPOST USING NATIVE EARTHWORMS

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HASHEMIMAJD K.

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Journal: AGRICULTURAL RESEARCH Year:2008 | Volume:8 | Issue:2 Page(s): 35-44

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Information Journal Paper

Title

CONVERTING OF SEWAGE SLUDGE TO VERMICOMPOST USING NATIVE EARTHWORMS

Author(s)

HASHEMIMAJD K. | Issue Writer Certificate

Keywords

VERMICOMPOSTQ2

SEWAGE SLUDGEQ3

BULKING MATERIALSQ3

HEAVY METALSQ3

EISENIA FOETIDAQ3

Abstract

Production of VERMICOMPOST from SEWAGE SLUDGE is one of the suitable methods for convert of this waste to organic fertilizer. In this study, effects of decomposition stage of sludge and BULKING MATERIALS on growth of earthworms were investigated. Experimental design was split factorial in three replications. The main factor was the stage of sewage decomposition (raw sewage, digested sludge in digester, dewatered sludge in lagoons, and final dried sludge in lagoons), and kind of BULKING MATERIALS (woodchips, tree leaves, and wheat straw) and mixing proportion of BULKING MATERIALS to swage sludge (0, 15, 30, and 45 %, V/V) were as subordinate factors. After 5 months incubation of pots in controlled moisture and temperature conditions, numbers of worms, cocoons, wet body weight of worms, and concentration of nutrients and HEAVY METALS in produced VERMICOMPOST were measured. Population of worms, their body weight and cocoon production were highest in the pots contain final dry sludge. The growth and reproduction of earthworms were greater when wood chips used as bulking material for VERMICOMPOST production. There was no significant difference between wheat straw and tree leaves in this respect. The suitable mixing proportion of bulking material and SEWAGE SLUDGE was 30 % (V/V). Therefore, mixing of wood chips with dry sewage with the proportion of 30 % (V/V) for VERMICOMPOST production and use of this technique to improve the stability of SEWAGE SLUDGE produced in sewage treatment plants are recommended.

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References

SURVEY OF CHEMICAL QUALITY AND FERTILIZER VALUE OF VERMICOMPOSTED MUNICIPAL WASTEWATER SLUDGE

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APA: Copy

HASHEMIMAJD, K.. (2008). CONVERTING OF SEWAGE SLUDGE TO VERMICOMPOST USING NATIVE EARTHWORMS. AGRICULTURAL RESEARCH, 8(2), 35-44. SID. https://sid.ir/paper/84649/en

Vancouver: Copy

HASHEMIMAJD K.. CONVERTING OF SEWAGE SLUDGE TO VERMICOMPOST USING NATIVE EARTHWORMS. AGRICULTURAL RESEARCH[Internet]. 2008;8(2):35-44. Available from: https://sid.ir/paper/84649/en

IEEE: Copy

K. HASHEMIMAJD, “CONVERTING OF SEWAGE SLUDGE TO VERMICOMPOST USING NATIVE EARTHWORMS,” AGRICULTURAL RESEARCH, vol. 8, no. 2, pp. 35–44, 2008, [Online]. Available: https://sid.ir/paper/84649/en

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