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竹材化学浆中段废水处理工程技术优化  ( EI收录)   被引量:1

Optimization of Engineering Process for Bamboo Chemical Pulp Middle-stage Wastewater Treatment

文献类型:期刊文献

中文题名:竹材化学浆中段废水处理工程技术优化

英文题名:Optimization of Engineering Process for Bamboo Chemical Pulp Middle-stage Wastewater Treatment

作者:丁来保[1,2,3,4,5] 施英乔[1,2,3,4] 盘爱享[1,2,3,4,5] 韩善明[1,2,3,4,5] 房桂干[1,2,3,4]

第一作者:丁来保

机构:[1]中国林业科学研究院林产化学工业研究所;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]中国林业科学研究院林业新技术研究所

年份:2015

卷号:35

期号:3

起止页码:104-108

中文期刊名:林产化学与工业

外文期刊名:Chemistry and Industry of Forest Products

收录:CSTPCD;;EI(收录号:20153001069138);Scopus(收录号:2-s2.0-84937718462);北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;

基金:中国林科院林业新技术所基本科研业务费专项资金(CAFINT2011K02)

语种:中文

中文关键词:竹材化学浆;废水;NH3-N;TN;TP;电导率

外文关键词:bamboo chemical pulp; wastewater; NH3-N; TN; TP; electrical conductivity

分类号:TQ35

摘要:从优化生物处理系统和更换新型混凝药剂2个方面入手,对35 000 m3/d竹材制浆废水处理工程进行了技术优化,同时对系统的氮、磷降解规律进行了研究。研究结果表明,初沉池、均衡池内的水解作用可促进竹浆废水中NH3-N的释放。好氧池停止尿素添加、补加磷酸盐,更有利于好氧微生物的生长,可提高废水处理效果。当二沉池出水的化学耗氧量(COD)约为200 mg/L时,以自制高效混凝剂(PFDAC)替代聚合氯化铝(PAC),用量1.5 kg/m3,助凝剂阴离子聚丙烯酰胺(PAM)用量为5 mg/L时,气浮处理后出水样COD为66~89 mg/L,气浮COD去除率达到55%以上,色度则降至10~30,总氮(TN)≤10.0 mg/L,氨氮(NH3-N)≤3.00 mg/L,总磷(TP)≤0.5 mg/L,其主要指标完全满足新国标GB 3544—2008。
The 35 000 m3/ d bamboo pulp wastewater treatment engineering has been technically optimized in two aspects of the optimization of biological treatment system and the application of highly effective new-type coagulant. Meanwhile,the degradation laws of nitrogen and phosphorus were studied. The results showed that the hydrolysis in primary settling tank and balancing tank could promote the release of NH3-N. The addition of phosphate instead of urea into aerobic tank could be favorable for the growth of biological bacteria and improve water treatment effects. When the effluent COD from secondary sedimentation tank came to200 mg / L or so,with a self-made high efficient coagulant( PFDAC) dosage of 1. 5 kg / m3 instead of poly aluminum chloride( PAC) and PAM dosage of 5 mg/L as coagulant anionic in the system,the removal rate of COD could reach above 98% and the main indexes of water quality such as effluent COD( 66~89 mg / L),color( dropped 10~30 times),total phosphorus( ≤ 0. 5 mg / L)completely met the new national standard GB3544—2008 after flotation.

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