软硬性填料对MBR处理效率和膜污染的影响

doi:10.16085/j.issn.1000-6613.2016.08.43

化工进展 ›› 2016, Vol. 35 ›› Issue (08): 2575-2579.DOI: 10.16085/j.issn.1000-6613.2016.08.43

软硬性填料对MBR处理效率和膜污染的影响

梁乾伟, 李永峰, 程国玲

东北林业大学林学院, 黑龙江哈尔滨 150040

收稿日期:2016-01-07 修回日期:2016-01-24 出版日期:2016-08-05 发布日期:2016-08-05
通讯作者: 李永峰,教授,主要研究方向为污水处理和环境微生物。E-mail:dr_lyf@163.com。
作者简介:梁乾伟(1991—),男,硕士研究生,主要研究方向为水污染控制。E-mail:liangqianwei123@163.com。
基金资助:
黑龙江省自然科学基金项目（E201354）。

Effect of soft and hard carriers on the treatment efficiency and membrane fouling in membrane bioreactor (MBR)

LIANG Qianwei, LI Yongfeng, CHENG Guoling

School of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China

Received:2016-01-07 Revised:2016-01-24 Online:2016-08-05 Published:2016-08-05

摘要/Abstract

摘要： 膜生物反应器（MBR）在污水处理领域的应用日益广泛，填料的投加对MBR污水处理效率和膜污染进程有一定的影响。本文分别向MBR中投加不同量的软性和硬性悬浮填料，研究了悬浮填料对MBR运行效率及膜污染的影响。结果表明，投加填料后MBR对COD、氨氮和总磷等污染物的处理效率有所提高，明显减缓了膜污染的进程。软性填料对MBR的改善效果优于硬性填料，投加20%的软性填料时，系统对COD、氨氮和总磷的去除率分别可达96.53%、98.21%和52.75%，系统运行30天时的膜污染情况比未投加填料的系统减缓了41.43%。通过对比发现软性填料能够为微生物提供更大的生存空间，提高反应器内的微生物量，从而提高MBR对污水的处理效率同时改善膜污染，是一种加强MBR系统的适宜填料，最佳投加量为反应器有效体积的20%。

关键词: 膜生物反应器, 悬浮填料, 膜污染, 最佳投加量

Abstract: Membrane bioreactor(MBR) has been widely used in the field of wastewater treatment. The addition of carriers has partly effect on the wastewater treatment efficiency and membrane fouling of MBR. In this work,different dosages of soft and hard carriers were added into MBR. Impact of suspended carriers on the treatment efficiency and membrane fouling of the MBR was studied. Results showed that the treatment efficiency of MBR for COD,ammonia nitrogen and total phosphorus was improved. The process of membrane fouling was obviously slowed down after adding carriers. The improvement effect of soft carrier on MBR was better than that of hard carrier. The removal rates of COD,ammonia nitrogen and total phosphorus were 96.53%,52.75% and 98.21%,respectively. Membrane fouling was mitigated by 41.43% of the original system after 30 days operation. According to the comparison,soft carrier supplied more living room for microorganism and the microbial biomass of reactor could be improved,so that the wastewater treatment efficiency of MBR was improved and membrane fouling was mitigated. The soft carrier was a kind of suitable carrier to enhance the MBR system,and the optimum dosage was 20% of effective volume of reactor.

Key words: membrane bioreactor(MBR), suspended carrier, membrane fouling, optimum dosage

中图分类号:

X703

梁乾伟, 李永峰, 程国玲. 软硬性填料对MBR处理效率和膜污染的影响[J]. 化工进展, 2016, 35(08): 2575-2579.

LIANG Qianwei, LI Yongfeng, CHENG Guoling. Effect of soft and hard carriers on the treatment efficiency and membrane fouling in membrane bioreactor (MBR)[J]. Chemical Industry and Engineering Progree, 2016, 35(08): 2575-2579.

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软硬性填料对MBR处理效率和膜污染的影响

Effect of soft and hard carriers on the treatment efficiency and membrane fouling in membrane bioreactor (MBR)

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