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Application of Coagulants on Cattle Biogas Slurry
Author(s): 
Pages: 96-101
Year: Issue:  9
Journal: Tianjin Agricultural Sciences

Keyword:  牛沼液混凝剂净化处理去除率;
Abstract: 研究了混凝剂对牛沼液的净化效果,选择最佳处理工艺,为畜禽废弃物厌氧发酵沼液的循环利用和安全排放提供科学依据.采用3种混凝剂、1种助凝剂,分别对牛沼液进行混凝试验,用矾花的形成、大小、沉降速度、浊度和CODcr值及其去除率评价其净化效果.结果表明:以氯化铁(320 mg·L-1)二次混凝的效果最好,矾花形成最快且相对最大、浊度为119.4 NTU,COD值为260 mg·L-1.将处理污水的混凝工艺技术应用在牛沼液的净化处理中,取得了良好的净化效果,有望达到国家畜禽养殖业污染物排放标准.
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