微生物菌剂处理循环冷却水的作用原理及其工业应用试验
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摘要
介绍了一种具有除垢阻垢、缓蚀、抑制有害菌藻繁殖、除磷、降解有机物、絮凝沉降等多种水处理效果的微生物菌剂(MEMA),并对其作用原理进行介绍。为解决传统化学药剂处理工业循环冷却水存在浓排水TP、COD、SS超标的问题,首次在保有水量为2. 5万m3的火力发电厂循环冷却水系统中进行了工业应用试验。试验结果表明:该微生物菌剂除具有传统化学药剂阻垢、缓蚀、抑制有害菌藻的作用外,还同时具有降低TP、COD、SS的效果。对比2种药剂,塔池浓排水ρ(TP)平均值由2. 4 mg/L下降至0. 5 mg/L,ρ(COD)平均值由86. 3 mg/L下降至43. 1 mg/L,ρ(SS)平均值由39. 3 mg/L下降至9. 1 mg/L,表明该菌剂对降低TP、COD、SS浓度具有良好效果。
This paper introduced the working principle of microbial agents with the effect of descaling,corrosion inhibition,sterilization,phosphorus removal,organic degradation,flocculation and sedimentation. In order to solve the problem that the quality of industrial recirculated cooling water treated with traditional chemical agents exceeding the sewage discharge standard on TP,COD and SS,an industrial application test was performed in a system at a coal-fired power plant with water storage of25000 m3. The results showed that the microbial agents not only achieved the effect of inhibiting scale,corrosion and reproduction of harmful bacteria and algae,but also achieved the effect of reducing TP,COD and SS. The TP content in the concentrated blowdown decreased from 2. 4 mg/L to 0. 5 mg/L,and COD content decreased from 86. 3 mg/L to 43. 1 mg/L,and that of SS decreased from 39. 3 mg/L to 9. 1 mg/L. The microbial agents were effective for removing TP,COD,SS in coding water.
This paper introduced the working principle of microbial agents with the effect of descaling,corrosion inhibition,sterilization,phosphorus removal,organic degradation,flocculation and sedimentation. In order to solve the problem that the quality of industrial recirculated cooling water treated with traditional chemical agents exceeding the sewage discharge standard on TP,COD and SS,an industrial application test was performed in a system at a coal-fired power plant with water storage of25000 m3. The results showed that the microbial agents not only achieved the effect of inhibiting scale,corrosion and reproduction of harmful bacteria and algae,but also achieved the effect of reducing TP,COD and SS. The TP content in the concentrated blowdown decreased from 2. 4 mg/L to 0. 5 mg/L,and COD content decreased from 86. 3 mg/L to 43. 1 mg/L,and that of SS decreased from 39. 3 mg/L to 9. 1 mg/L. The microbial agents were effective for removing TP,COD,SS in coding water.
引文
[1]杨宝莉．杀菌剂对循环水系统设备腐蚀的研究[J]．齐鲁石油化工，2017,45(4):257-259.
[2]薛懂，刘邓超，张洪林，等．生物酶水质稳定剂对炼油厂循环水的处理研究[J]．辽宁石油化工大学学报，2013(3):1-3.
[3]韩笑．酶处理技术在循环冷却水系统生物粘泥控制中的应用[D]．青岛:中国石油大学(华东)，2008.
[4]吴雁雯，张金池．微生物碳酸酐酶在岩溶系统碳循环中的作用与应用研究进展[J]．生物学杂志，2015,32(3):78-83.
[5]李为．典型生物及其碳酸酐酶在岩溶生态系统中的作用[D]．武汉:华中科技大学，2004.
[6] Kalia V C. Quorum sensing inhibitors:an overview[J].Biotechnology Advances,2013,31(2):224-245.
[7]郭冰怡，董燕红．细菌群体感应抑制剂研究进展[J]．农药学学报，2018,20(4):408-424.
[8]谭旋．群体淬灭细菌对循环冷却水系统中水质和微生物成膜及多样性影响研究[D]．重庆:重庆大学，2014.
[9]李立欣，刘婉萌，马放．复合型微生物絮凝剂研究进展[J]．化工学报，2018,69(10):4139-4147.
[10] Lai H J,Fang H W,Huang L,et al. A review on sedmiment bioflocculation:dynamics,influencing factors and modeling[J].Science of the Total Environment,2018,642(12):1184-1200.
[11] Kumar S S, Suriyanarayanan A, Panigrahi B S. Studies on performance of indices in cooling water system[J]. Indian Journal of Chemical Technology,2012,19(1):75-80.
[12]中华人民共和国住房和城乡建设部．工业循环冷却水处理设计规范:GB/T 50050—2017[S]．北京:中国计划出版社，2017.
[2]薛懂，刘邓超，张洪林，等．生物酶水质稳定剂对炼油厂循环水的处理研究[J]．辽宁石油化工大学学报，2013(3):1-3.
[3]韩笑．酶处理技术在循环冷却水系统生物粘泥控制中的应用[D]．青岛:中国石油大学(华东)，2008.
[4]吴雁雯，张金池．微生物碳酸酐酶在岩溶系统碳循环中的作用与应用研究进展[J]．生物学杂志，2015,32(3):78-83.
[5]李为．典型生物及其碳酸酐酶在岩溶生态系统中的作用[D]．武汉:华中科技大学，2004.
[6] Kalia V C. Quorum sensing inhibitors:an overview[J].Biotechnology Advances,2013,31(2):224-245.
[7]郭冰怡，董燕红．细菌群体感应抑制剂研究进展[J]．农药学学报，2018,20(4):408-424.
[8]谭旋．群体淬灭细菌对循环冷却水系统中水质和微生物成膜及多样性影响研究[D]．重庆:重庆大学，2014.
[9]李立欣，刘婉萌，马放．复合型微生物絮凝剂研究进展[J]．化工学报，2018,69(10):4139-4147.
[10] Lai H J,Fang H W,Huang L,et al. A review on sedmiment bioflocculation:dynamics,influencing factors and modeling[J].Science of the Total Environment,2018,642(12):1184-1200.
[11] Kumar S S, Suriyanarayanan A, Panigrahi B S. Studies on performance of indices in cooling water system[J]. Indian Journal of Chemical Technology,2012,19(1):75-80.
[12]中华人民共和国住房和城乡建设部．工业循环冷却水处理设计规范:GB/T 50050—2017[S]．北京:中国计划出版社，2017.