Sun Wen, Xing Meiyan, Yang Jian, Bian Fangjie, Pan Sai. RESEARCH PROGRESS ON VERMICOMPOSTING OF SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(10): 90-94. doi: 10.13205/j.hjgc.201510020
Citation:
Sun Wen, Xing Meiyan, Yang Jian, Bian Fangjie, Pan Sai. RESEARCH PROGRESS ON VERMICOMPOSTING OF SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(10): 90-94. doi: 10.13205/j.hjgc.201510020
Sun Wen, Xing Meiyan, Yang Jian, Bian Fangjie, Pan Sai. RESEARCH PROGRESS ON VERMICOMPOSTING OF SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(10): 90-94. doi: 10.13205/j.hjgc.201510020
Citation:
Sun Wen, Xing Meiyan, Yang Jian, Bian Fangjie, Pan Sai. RESEARCH PROGRESS ON VERMICOMPOSTING OF SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(10): 90-94. doi: 10.13205/j.hjgc.201510020
Compared with other sludge disposal methods， vermicomposting has the advantages of simple process，no secondary
pollution， low running cost and high agricultural fertilizer efficiency from earthworm cast． The research outlined the option of
earthworm species in sludge composting． Four influencing factors including C to N ratio，pH and EC， temperature，and
moisture were introduced． It listed the types， function， effect of the normal amendments and analyzed five kinds of chemical and
biological indexes for determining maturity as follows: dissolved organic carbon ( DOC) ， ammonia nitrogen and nitrate nitrogen
( NH +
4 －N and NO3－N) ，C to N ratio in solid phase，dissolved organic carbon to dissolved organic nitrogen ratio ( DOC/DON) ，
germination index ( GI) ． Suggestions on further research were proposed based on the current existing problems．
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