Nitrate and pesticide removal by a combined bioelectrochemical/adsorption process

被引：20

作者：

Feleke, Z ^{[1
]}

Sakakibara, Y ^{[1
]}

机构：

[1] Gunma Univ, Dept Civil Engn, Kiryu, Gumma 3768515, Japan

来源：

WATER SCIENCE AND TECHNOLOGY | 2001年 / 43卷 / 11期

关键词：

adsorption; biofilm-electrode reactor; drinking water; nitrate; pesticide;

D O I：

10.2166/wst.2001.0663

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biological denitrification and trace pesticide removal in a combined biofilm-electrode reactor/adsorption process has been investigated. In long-term (more than 260 days) continuous experiments, influent and effluent concentrations of nitrate, nitrite, isoprothiolane and gas composition were measured at different electric current and pesticide loading conditions. Experimental results showed that complete and stable denitrification was achieved in BER without accumulation of nitrite and nitrous oxide. Isoprothiolane (IPT) was removed by adsorption onto either granular activated carbon or silicone resin, Removal efficiency of IPT exceeding 97% was achieved and effluent concentration was below the guideline value (40 mug/l). Theoretically predicted effluent concentrations were in good agreement with the observed results. From these results, it is concluded that the combined process is applicable to treat nitrate and pesticide contaminated drinking water. Moreover, from comparison with former studies, different possible options to further enhance the decomposition of pesticide were suggested.

引用

页码：25 / 33

页数：9

共 23 条

[1]

[Anonymous], 1995, STANDARD METHODS EXA

[2] NITRITE AND NITROUS-OXIDE ACCUMULATION DURING DENITRIFICATION IN THE PRESENCE OF PESTICIDE DERIVATIVES [J].

BOLLAG, JM ;

KUREK, EJ .

APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 1980, 39 (04) :845-849

[3] Reducing diffuse pollution through implementation of agricultural best management practices: A case study [J].

Cook, MG ;

Hunt, PG ;

Stone, KC ;

Canterberry, JH .

WATER SCIENCE AND TECHNOLOGY, 1996, 33 (4-5) :191-196

[4]

DHAB FM, 1987, ENV SYST, V17, P65

[5] INOCULATION OF GRANULAR ACTIVATED CARBON IN A FIXED-BED WITH S-TRIAZINE-DEGRADING BACTERIA AS A WATER-TREATMENT PROCESS [J].

FEAKIN, SJ ;

BLACKBURN, E ;

BURNS, RG .

WATER RESEARCH, 1995, 29 (03) :819-825

[6] Selective reduction of nitrate to nitrogen gas in a biofilm-electrode reactor [J].

Feleke, Z ;

Araki, K ;

Sakakibara, Y ;

Watanabe, T ;

Kuroda, M .

WATER RESEARCH, 1998, 32 (09) :2728-2734

[7]

FELEKE Z, 1999, ENV ENG RES, V36, P323

[8] ELECTROCATALYSIS OF ANODIC OXYGEN-TRANSFER REACTIONS - THE ELECTROCHEMICAL INCINERATION OF BENZOQUINONE [J].

FENG, JR ;

HOUK, LL ;

JOHNSON, DC ;

LOWERY, SN ;

CAREY, JJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (11) :3626-3632

[9]

FUKUSHIMA M, 1995, WATER SUPP, V13, P107

[10] DRINKING-WATER FROM AGRICULTURALLY CONTAMINATED GROUNDWATER [J].

GOODRICH, JA ;

LYKINS, BW ;

CLARK, RM .

JOURNAL OF ENVIRONMENTAL QUALITY, 1991, 20 (04) :707-717

← 1 2 3 →