Nitrate removal and extracellular polymeric substances of autohydrogenotrophic bacteria under various pH and hydrogen flow rates

被引：10

作者：

Tran-Ngoc-Phu Nguyen ^{[1
]}

Chen, Pei-Chung ^{[1
]}

Huang, Chihpin ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Environm Engn, Hsinchu 300, Taiwan

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2018年 / 63卷

关键词：

Autohydrogenotrophic bacteria; Nitrate removal; Extracellular polymeric substances; Polysaccharides; Proteins; MEMBRANE-BIOFILM REACTOR; ACTIVATED-SLUDGE; WASTE-WATER; DENITRIFICATION; BICARBONATE; BIOREACTOR; KINETICS; GROWTH; EPS;

D O I：

10.1016/j.jes.2017.01.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In recent years there has been an increasing interest in the use of autohydrogenotrophic bacteria to treat nitrate from wastewater. However, our knowledge about the characteristics of extracellular polymeric substances (EPS) releasing by these activities is not yet very advanced. This study aimed to investigate the change in EPS compositions under various pH values and hydrogen flow rates, taking into consideration nitrogen removal. Results showed that pH 7.5 and a hydrogen flow rate of 90 mL/min were the optimal operating conditions, resulting in 100% nitrogen removal after 6 hr of operation. Soluble and bound polysaccharides decreased, while bound proteins increased with increasing pH. Polysaccharides increased with increasing hydrogen flow rate. No significant change of bound proteins was observed at various hydrogen flow rates. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.

引用

页码：50 / 57

页数：8

共 29 条

[1]

BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3

[2] Hydrogenotrophic denitrification with immobilized Alcaligenes eutrophus for drinking water treatment [J].

Chang, CC ;

Tseng, SK ;

Huang, HK .

BIORESOURCE TECHNOLOGY, 1999, 69 (01) :53-58

[3]

Chen D., 2014, DRUG DELIV, P1, DOI DOI 10.3109/10717544.2014.917130

[4] A COLORIMETRIC METHOD FOR THE DETERMINATION OF SUGARS [J].

DUBOIS, M ;

GILLES, K ;

HAMILTON, JK ;

REBERS, PA ;

SMITH, F .

NATURE, 1951, 168 (4265) :167-167

[5] Bio-electrochemical removal of nitrate from water and wastewater - A review [J].

Ghafari, Shahin ;

Hasan, Masitah ;

Aroua, Mohamed Kheireddine .

BIORESOURCE TECHNOLOGY, 2008, 99 (10) :3965-3974

[6] A kinetic study of autohydrogenotrophic denitrification at the optimum pH and sodium bicarbonate dose [J].

Ghafari, Shahin ;

Hasan, Masitah ;

Aroua, Mohamed Kheireddine .

BIORESOURCE TECHNOLOGY, 2010, 101 (07) :2236-2242

[7] Nitrate remediation in a novel upflow bio-electrochemical reactor (UBER) using palm shell activated carbon as cathode material [J].

Ghafari, Shahin ;

Hasan, Masitah ;

Aroua, Mohamed Kheireddine .

ELECTROCHIMICA ACTA, 2009, 54 (17) :4164-4171

[8] Effect of carbon dioxide and bicarbonate as inorganic carbon sources on growth and adaptation of autohydrogenotrophic denitrifying bacteria [J].

Ghafari, Shahin ;

Hasan, Masitah ;

Aroua, Mohamed Kheireddine .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 162 (2-3) :1507-1513

[9] Denitrification kinetics of high nitrate concentration water: pH effect on inhibition and nitrite accumulation [J].

Glass, C ;

Silverstein, J .

WATER RESEARCH, 1998, 32 (03) :831-839

[10] Effect of CuO nanoparticles on the production and composition of extracellular polymeric substances and physicochemical stability of activated sludge flocs [J].

Hou, Jun ;

Miao, Lingzhan ;

Wang, Chao ;

Wang, Peifang ;

Ao, Yanhui ;

Lv, Bowen .

BIORESOURCE TECHNOLOGY, 2015, 176 :65-70

← 1 2 3 →