摘要
本文通过对制革过程排放物成分分析 ,讨论了这些污染成分的主要来源及其对环境可能造成的危害 ,特别是对地表水和水生生物的危害。制革废水排放量大 ,污染负荷高 ,污染物成分复杂 ,而且不论是排水量还是污染成分都不具有连续性。排放物中主要含有三价铬和硫化碱等有害成份 。
This paper analyses the pollutant of the effluent from the tannery, and discusses the source of the pollutant and their harmfulness for environment, special for surface water or rivers and aquatic life. The effluent from tannery has a character of larger amount, higher pollutional charge and complicated pollutants. It don't has continuity either discharge or pollutants. There are mainly trivalent chrome and sulphide which are toxic. Many components in effluent maybe broken down by bacterial action, but oxygen demand is higher. Nitrogen in the effluent means mostly ammonia from deliming and softing, and the nitrogen content of proteinaceous materials resulting from liming/unhairing.
出处
《皮革科学与工程》
CAS
2002年第5期44-48,共5页
Leather Science and Engineering
