摘要
恩杜罗消毒废水中含有双十烷基二甲基氯化铵类(didecyldimethylammonium chloride,DDAC)物质,具有COD浓度高和有机氮浓度高等特点,以火山岩陶粒和贝壳生物陶粒制备混合床生物滤柱(mix-bed biological aerated filter,MBBAF)作为消毒废水的预处理工艺,研究其对不同浓度恩杜罗消毒废水的预处理效果。在恩杜罗消毒废水中双十烷基二甲基氯化铵的浓度为130 mg/L时,其出水COD稳定在430 mg/L,总氮为35 mg/L;氨氮稳定后的出水浓度约为32 mg/L。pH由进水的9.0降为6.8左右,且由MB-BAF中贝壳生物填料对p H的缓冲作用而稳定。当双十烷基二甲基氯化铵的浓度低于130 mg/L时,采用MB-BAF滤柱对恩杜罗消毒废水进行预处理,各项主要的水质指标均能达到《污水排入城镇下水道水质标准(CJ 343-2010)》中的A级标准。
The Enduro disinfectant wastewater contains didecyldimethylammonium chloride（ DDAC） with high COD concentration,high organic nitrogen,etc. The wastewater was pretreated by a mix-bed biological aerated filter（ MB-BAF） which was prepared by volcanic ceramsite and shell biological ceramsite. The effect on the influent Enduro concentrations of disinfectant wastewater by MB-BAF was investigated. When the influent concentration of DDAC was 130 mg / L,the effluent concentration of COD,total nitrogen,and ammonia were 430,35 and 32 mg / L,respectively. The p H of influent and effluent were 9. 0 and 6. 8,and can be stabilized by the buffer action of shell biological ceramsite in MB-BAF. When the DDAC concentration of Enduro disinfectant wastewater was below 130 mg / L,the major water quality indexes of effluent pretreated by MB-BAF can reach the grade A standard of wastewater quality standards for discharge to municipal sewers（ CJ 343-2010）.
出处
《环境工程学报》
CAS
CSCD
北大核心
2015年第11期5237-5242,共6页
Chinese Journal of Environmental Engineering
基金
厦门科技计划项目(3502Z20131026)
国家"水体污染控制与治理"科技重大专项(2012ZX07313-001-08)
国家自然科学基金资助项目(51078157)
关键词
混合床生物滤柱
恩杜罗消毒废水
预处理
脱氮
mix-bed biological aerated filter（MB-BAF）
Enduro disinfectant wastewater
pretreatment
denitrification
