REAL-TIME CONTROL OF AEROBIC-ANOXIC SLUDGE-DIGESTION USING ORP

被引：49

作者：

WAREHAM, DG ^{[1
]}

HALL, KJ ^{[1
]}

MAVINIC, DS ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,DEPT CIVIL ENGN,VANCOUVER V6T 1Z4,BC,CANADA

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE | 1993年 / 119卷 / 01期

关键词：

D O I：

10.1061/(ASCE)0733-9372(1993)119:1(120)

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This research documents the use of oxidation-reduction potential (ORP) to control two lab-scale aerobic-anoxic sludge digesters. The reactors were operated in sequencing batch reactor fashion, and one reactor had the ratio of air-on/air-off arbitrarily ''fixed'' at 3 h for each portion of the cycle. The other reactor operated in a real-time manner with 3 h of air-on and the air-off time determined by computer detection of the nitrate breakpoint in the orp-time profile. Reactor performances were evaluated from a chemical (mass balance) removal perspective [total and volatile suspended solids (TSS and VSS), nitrogen, and phosphorus] coupled with a consideration of the control stability achieved when the reactors were subjected to spikes of sodium nitrate, ammonium chloride, and hydrogen peroxide. The reactors showed comparable chemical removals, however the real-time control reactor displayed a greater ability to accommodate the disturbances investigated.

引用

页码：120 / 136

页数：17