摘要
采用在生活污水中投加有效微生物群（ＥＭ） 的方法，系统评价了ＥＭ 对污水中三类常见污染物去除率的影响。结果表明：①好氧条件下，ＥＭ 显著提高污水ＣＯＤｃｒ 去除率的适宜加入量（ＶＥＭ／Ｖ污水） 为５／１０ ０００ － １／１０００ ，增幅达１０ ％ ；厌氧条件下，ＥＭ 对污水ＣＯＤｃｒ 的去除没有促进作用。②ＥＭ 在好氧条件下能显著或极显著提高污水ＮＨ４ ＋ － Ｎ 的硝化程度，当ＥＭ 加入量为５／１０００ 时效果最好，增幅达３７ ．６２ ％ ；厌氧条件下，当加入量为１／１０ ０００ －１／１０００ 时，能极显著增强污水的反硝化作用，ＮＯ３ － － Ｎ 的去除率约提高１４ ％ 。③ＥＭ 加入量大于５／１０００ 时，才能显著提高污水的除磷能力。由此提出，在处理污水时，应根据处理要求，选择适宜的ＥＭ
The effect of Effective Microorganisms(EM) on the removal of three main kinds of pollutants from domestic sewage(DS) was studied by adding EM into DS. It showed that: ①In aerobic condition, EM addition (V EM /V DS ) between 5/10000-1/1000 raised the removal rate of CODcr significantly with an increment of about 10%; however, in anaerobic condition, EM had no remarkable effect on CODcr removal. ②5/1000 of EM addition could enhance the nitrification in DS significantly with a largest increment of 37.62% of NH 4 +-N removal rate; EM addition between 1/10000-1/1000 also promoted the denitrification with an increment of about 14% of NO 3 --N removal. ③Removal rate of phosphorus from DS was increased significantly when EM addition surpassed 5/1000. Therefore, suitable EM addition need to be chosen to meet with different purposes of wastewater treatment.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
1999年第5期4-7,共4页
Urban Environment & Urban Ecology
基金
中南林学院重点科研基金
关键词
有效微生物群
EM
生活污水
废水处理
生物处理
effective microorganisms(EM)
domestic sewage
chemical oxygen demand(COD)
ammonia nitrogen (NH 4 +-N)
total phosphorus (T-P)
