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Effects of Dissolved Organic Matter and pH on Heavy Metal Uptake by Sludge Particulates Exemplified by Copper(II) and Nickel(II): Three‐Variable Model
Author(s) -
Wang Jianmin,
Huang C.P.,
Allen Herbert E.,
Poesponegoro Ira,
Poesponegoro Haryanto,
Takiyama Luis R.
Publication year - 1999
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143099x121517
Subject(s) - particulates , chemistry , copper , dissolved organic carbon , environmental chemistry , nickel , metal , organic matter , inorganic chemistry , organic chemistry
Dissolved organic matter (DOM) and pH are important factors affecting heavy metal uptake by sludge particulates. Copper(II) and Nickel(II) uptake behavior by primary and secondary sludge particulates was studied under various pH and DOM conditions. A three‐variable model, incorporating effects of pH and DOM, was developed to describe heavy metal uptake. Results show that heavy metal uptake by sludge particulates can be better described by the three‐variable model than by the modified Langmuir model in a wide pH range.