Control of nitrate recirculation flow in predenitrification systems

被引：46

作者：

Yuan, ZG ^{[1
]}

Oehmen, A

Ingildsen, P

机构：

[1] Univ Queensland, Adv Wastewater Management Ctr, AWMC, St Lucia, Qld 4072, Australia

[2] Lund Univ, IEA, DK-6400 Sonderborg, Denmark

[3] Lund Univ, Danfoss Analyt, DK-6400 Sonderborg, Denmark

来源：

WATER SCIENCE AND TECHNOLOGY | 2002年 / 45卷 / 4-5期

关键词：

nitrate recirculation; optimisation; predenitrification; process control; Simulation Benchmark;

D O I：

10.2166/wst.2002.0544

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The control of the nitrate recirculation flow in a predenitrification system is addressed. An elementary mass balance analysis on the utilisation efficiency of the influent biodegradable COD (bCOD) for nitrate removal indicates that the control problem can be broken down into two parts: maintaining the "anoxic" zone anoxic (i.e. nitrate is present throughout the anoxic zone) and maximising the usage of influent soluble bCOD for denitrification. Simulation studies using the Simulation Benchmark developed in the European COST program show that both objectives can be achieved by maintaining the nitrate concentration at the outlet of the anoxic zone at around 2 mgN/L. This setpoint appears to be robust towards variations in the influent characteristics and sludge kinetics.

引用

页码：29 / 36

页数：8

共 12 条

[1] Nutrient sensor based real-time on-line process control of a wastewater treatment plant using recirculation [J].

Balslev, P ;

LynggaardJensen, A ;

Nickelsen, C .

WATER SCIENCE AND TECHNOLOGY, 1996, 33 (01) :183-192

[2]

DOCHAIN D, 1999, COST ACTION 682 INTE

[3] Activated Sludge Model No. 3 [J].

Gujer, W ;

Henze, M ;

Mino, T ;

van Loosdrecht, M .

WATER SCIENCE AND TECHNOLOGY, 1999, 39 (01) :183-193

[4]

Henze M., 1987, ACTIVATED SLUDGE MOD

[5] STRATEGIES FOR OPTIMIZED NITRATE REDUCTION WITH PRIMARY DENITRIFICATION [J].

LONDONG, J .

WATER SCIENCE AND TECHNOLOGY, 1992, 26 (5-6) :1087-1096

[6] Aerobic storage under dynamic conditions in activated sludge processes. The state of the art [J].

Majone, M ;

Dircks, K ;

Beun, JJ .

WATER SCIENCE AND TECHNOLOGY, 1999, 39 (01) :61-73

[7]

OLSSON G, 1994, ESTABLISHING CAUSE E, P2057

[8] Advanced computer control based on real and software sensors [J].

Onnerth, TB ;

Nielsen, MK ;

Stamer, C .

WATER SCIENCE AND TECHNOLOGY, 1996, 33 (01) :237-245

[9]

Sorensen KH, 2000, WATER SCI TECHNOL, V41, P177

[10]

Spanjers H, 1998, WATER SCI TECHNOL, V37, P219, DOI 10.2166/wst.1998.0545

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