|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Comparison of steady state performance of the sulphide driven DEAMOX process under intermittent and continuous feeding and different nitrogen loading ratesстатья
- Авторы: Gladchenko M.A., Kalyuzhnyi S.V., Mulder A., Versprille A.
- Сборник: Proc. of the Final Workshop CLONIC
- Год издания: 2007
- Место издания: Barcelona
- Первая страница: 174
- Последняя страница: 178
- Аннотация: This paper compares a steady state performance of the recently developed DEAMOX (DEnitrifying AMmonium OXidation) process under intermittent and continuous feeding and increasing nitrogen loading rate (NLR) from 300 till 858 mg N/l/d. The average total nitrogen removal had some trend to decrease with increasing the NLR from 86 to 79% (intermittent feeding) and from 87 to 84% (continuous feeding). The better performance under continuous feeding was due to a more complete nitrate removal in the former case whereas the ammonia removal was similar for both the feeding regimes under the comparable NLR. A possible explanation can be that, during continuous feeding (simultaneous supply of nitrate and sulphide), there were less mass transfer limitations for sulphide oxidizing denitrifiers presumably located in the outer layer of sludge aggregates. On the contrary, the ammonia oxidisers presumably located inside the aggregates apparently suffered from nitrite mass transfer limitations under both the feedings. The paper further describes some characteristics of the DEAMOX sludge.
- Добавил в систему: Гладченко Марина Анатольевна