Autohydrogenotrophic Denitrification Using the Membrane Biofilm Reactor for Removing Nitrate from High Sulfate Concentration of Water.

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2018-08-05 DOI:10.1155/2018/9719580

Yanhao Zhang, Haohan Zhang, Zhibin Zhang, Yuchen Wang, Taha Marhaba, Jixiang Li, Cuizhen Sun, Wen Zhang

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引用次数: 3

Abstract

This study investigated the performance of an autohydrogenotrophic membrane biofilm reactor (MBfR) to remove nitrate from water with high sulfate concentrations. The results of simulated running showed that TN removal could be over than 98.8% with the maximum denitrification rate of 134.6 g N/m³ d under the conditions of the influent sulfate concentrations of 300 mg SO₄^2-/l. The distribution ratio of H₂ electron donor for nitrate and sulfate was 70.0 : 26.9 at the high influent loading ratio of sulfate/nitrate of 853.3 g SO₄^2-/m³ d : 140.5 g N/m³ d, which indicated that denitrification bacteria (DB) were normally dominated to complete H₂ electron with sulfate bacteria (SRB). The results of molecular microbiology analysis showed that the dominated DB were Rhodocyclus and Hydrogenophaga, and the dominated SRB was Desulfohalobium, under the high influent sulfate concentrations.

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使用膜生物膜反应器去除高硫酸盐浓度水中硝酸盐的自氢营养反硝化。

本研究考察了自氢营养膜生物膜反应器（MBfR）去除高硫酸盐浓度水中硝酸盐的性能。模拟运行结果表明，TN去除率可达98.8%以上，最大脱氮率为134.6 g N/m3 d在进水硫酸盐浓度为300的条件下毫克 SO42-/l。硝酸盐和硫酸盐的H2电子供体的分布比例为70.0 : 26.9，硫酸盐/硝酸盐的高进水负荷比为853.3 g SO42-/m3 d : 140.5 g N/m3 d、表明反硝化菌（DB）通常以硫酸盐菌（SRB）完成H2电子为主。分子微生物学分析结果表明，在较高的进水硫酸盐浓度下，主要DB为Rhocyclus和Hydrogenophaga，主要SRB为脱硫卤虫。

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