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Combined biological and physico-chemical treatment of baker’s yeast wastewater including removal of coloured and recalcitrant to biodegradation pollutantsстатья
- Авторы: Gladchenko M., Starostina E., Shcherbakov S., Versprille B., Kalyuzhnyi S.
- Сборник: Proc. IWA Intern. Conf. "ECOHAZARD 2003"
- Том: 35
- Год издания: 2003
- Место издания: Aachen, Germany
- Первая страница: 1
- Последняя страница: 4
- Аннотация: The UASB reactor (35 oC) 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 till 10.3 g COD/l/d). The aerobic-anoxic biofilter (20 oC) can be used for removal of remaining BOD and ammonia from strong nitrogeneous anaerobic effluents; however, it suffered from COD-deficiency to fulfil denitrification requirements. To balance 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.
- Добавил в систему: Гладченко Марина Анатольевна