摘要
水中存在的氨氮能够产生水体富营养化等危害。水中氨氮的去除非常
必要。氨氮去除方法有多种,物理化学法有折点氯化法、空气吹脱法、化学沉
淀法、液膜法、电渗析除氨氮法、催化湿式氧化法、土壤灌溉法、循环冷却水
系统脱氨法;生物脱氮法可去除多种含氮化合物,总氮去除率可达 70 %-95
% ,主要有传统硝化反硝化、短程硝化反硝化、同时硝化反硝化、厌氧氨氧化。
有时要采取多种技术的联合处理,才能取长补短达到较好的处理效果。
关键词:
氨氮 废水 处理 脱氮
Abstract :
Existence of ammonia in water can generate eutrophication and
other hazards. Ammonia in the water removal is necessary.There are many kinds
of N H3 - N wastewater treatment techniques. Physical -chemical treatment
techniques mainly include : break - point chlorination process , air stripping
process , chemical precipitation process , ion exchange process , liquid membrane
process , electro dialysis process , catalytic - wet oxidation process , land
irrigation process ,cool recycle water system removing ammonia process , etc. .
Biological techniques can remove many kinds of nitrogen containing
compounds , total nitrogen clearance is 70 %
-95 % ,mainly including
traditional , short - distance , SND and ANAMMOX technique. Sometimes in
order to overcome one technique’s weakness by acquiring other’s strong point s
and get good effect , several techniques should be joined together
.
Key words :
Ammonia - Nitrogen ; wastewater ; treatment
; nitrogen
removal
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