Combined biological and physico-chemical treatment of baker's yeast wastewater including removal of coloured and recalcitrant to biodegradation pollutants

被引：12

作者：

Gladchenko, M ^{[1
]}

Starostina, E

Shcherbakov, S

Versprille, B

Kalyuzhnyi, S

机构：

[1] Moscow MV Lomonosov State Univ, Fac Chem, Dept Chem Enzymol, Moscow 119992, Russia

[2] Moscow MV Lomonosov State Univ, Food Ind, Dept Grape Proc Technol, Moscow 125080, Russia

[3] Biothane Syst Int, NL-2623 EW Delft, Netherlands

来源：

WATER SCIENCE AND TECHNOLOGY | 2004年 / 50卷 / 05期

关键词：

aerobic-anoxic biofilter; baker's yeast wastewater; iron coagulation; melanoidins; UASB reactor;

D O I：

10.2166/wst.2004.0310

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The UASB reactor (35degreesC) was quite efficient for removal of bulk COD (62-67%) even for such high strength and recalcitrant wastewater as the cultivation medium from the first separation process of baker's yeasts (the average organic loading rates varied from 3.7 to 10.3 g COD/I/d). The aerobic-anoxic biofilter (20degreesC) can be used for removal of remaining BOD and ammonia from strong nitrogenous anaerobic effluents; however, it suffered from COD-deficiency to fulfil denitrification requirements. To balance the COD/N ratio, some bypass of raw wastewater should be added to the biofilter feed. The application of iron chloride coagulation for post-treatment of aerobic effluents may fulfil the discharge limits (even for colour mainly exerted by hardly biodegradable melanoidins) under iron concentrations around 200 mg/l.

引用

页码：67 / 72

页数：6