Operation effect of biological filter with rubber and ceramsite as filler

doi:10.19965/j.cnki.iwt.2020-1179

Industrial Water Treatment ›› 2021, Vol. 41 ›› Issue (9): 69-73. doi: 10.19965/j.cnki.iwt.2020-1179

• Research and Experiment • Previous Articles Next Articles

Operation effect of biological filter with rubber and ceramsite as filler

Xuemin Yu^1,²(),Jun Zhou³(),Hao Chen⁴

1. Jiangsu Academy of Environmental Sciences, Nanjing 210036, China
2. Jiangsu Key Laboratory of Environmental Engineering, Nanjing 210036, China
3. Jiangsu Academy of Environmental Science Environmental Technology Co., Ltd., Nanjing 210019, China
4. School of Environmental, Hohai University, Nanjing 210098, China

Received:2021-07-09 Online:2021-09-20 Published:2021-09-28

以橡胶颗粒与陶粒为生物滤池填料的运行效果研究

喻学敏^1,²(),周军³(),陈浩⁴

1. 江苏省环境科学研究院, 江苏南京 210036
2. 江苏省环境工程重点实验室, 江苏南京 210036
3. 江苏省环科院环境科技有限责任公司, 江苏南京 210019
4. 河海大学环境学院, 江苏南京 210098

作者简介:喻学敏(1975-), 正高级工程师。电话: 13851512433, E-mail: yxm475@139.com|周军, 高级工程师。电话: 13851577049, E-mail: 648191187@qq.com
基金资助:
国家水体污染控制与治理科技重大专项(2017ZX07202-001-003);江苏省环境工程重点实验室开放基金项目(ZX2017001)

Abstract

Abstract:

Based on the analysis of the physical and chemical properties of waste rubber particles, the operation of denitrification biofilter(DNBF) with rubber particles and ceramsite fillers under the conditions of start-up, membrane formation, different C/N and hydraulic retention time(HRT) was studied comparably. The results showed that the DNBF with rubber particles as filler was easier to start and reach stable state. The optimal C/N of ceramsite and rubber particles DNBF was 4 and 3 respectively, and the denitrification rate of rubber particles DNBF was more than 90%. Under the condition of C/N of 4, the optimal HRT of ceramsite and rubber particles DNBF 150 min and 90 min, the denitrification rate of rubber particles DNBF was above 93.5%. The test results showed that the waste rubber particles were a good DNBF filler and had wide application value.

Key words: denitrification biofilter, ceramsite, rubber particles, C/N, hydraulic retention time

摘要：

以陶粒为对照，在分析废旧橡胶颗粒理化性质的基础上，对比研究分别以橡胶颗粒和陶粒为填料的反硝化生物滤池（DNBF）的启动挂膜情况以及不同C/N及HRT条件下的运行情况。结果表明，以橡胶颗粒为填料的DNBF更容易启动并达到稳定状态；陶粒和橡胶颗粒DNBF的最佳C/N分别为4和3，其中橡胶颗粒DNBF的脱氮率达90%以上；在C/N为4的条件下，陶粒和橡胶颗粒DNBF的最佳HRT分别为150 min和90 min，橡胶颗粒DNBF的脱氮率在93.5%以上。试验结果均表明废旧橡胶颗粒是一种良好的DNBF填料，具有广泛应用价值。

关键词: 反硝化生物滤池, 陶粒, 橡胶颗粒, 碳氮比, 水力停留时间

CLC Number:

X703.1

Xuemin Yu,Jun Zhou,Hao Chen. Operation effect of biological filter with rubber and ceramsite as filler[J]. Industrial Water Treatment, 2021, 41(9): 69-73.

喻学敏,周军,陈浩. 以橡胶颗粒与陶粒为生物滤池填料的运行效果研究[J]. 工业水处理, 2021, 41(9): 69-73.

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URL: https://www.iwt.cn/EN/10.19965/j.cnki.iwt.2020-1179

https://www.iwt.cn/EN/Y2021/V41/I9/69

Figures/Tables 9

Fig.1 Experimental setup

Table 1 Physicochemical properties of ceramic granules and rubber particles

分析项目	陶粒	橡胶颗粒
成分	87.4458 %O、7.450 8%Si、2.628 8%Al、1.109 4%Fe、0.403 6%K、0.344 0%Mg	91.570 1%O、6.569 3%C、0.472 3%Ca、0.432 8%Cl、0.413 6%S
粒径/mm	3~4	3~5
比表面积/(m²·g^-1)	0.441	1.385
平均孔径/nm	-	2.343 3

Fig.2 The SEM image of ceramic granules and waste rubber particles

Fig.3 Leaching of COD from rubber particles at different pH conditions

Fig.4 The effluent TN of different filler DNBF during the start-up of membrane hanging

Fig.5 Effect of C/N on the operational effectiveness of ceramsite DNBF

Fig.6 Effect of C/N on the operational effectiveness of rubber particles DNBF

Fig.7 Effect of HRT on the operational effectiveness of ceramsite DNBF

Fig.8 Effect of HRT on the operational effectiveness of rubber particles DNBF

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