In situ Adaptation of Activated Sludge by Shock Loading to Enhance Treatment of High Ammonia Content Petrochemical Wastewater

A modified activated sludge process that includes both carbonaceous and nitrogenous oxidation to reduce high levels of ammonia in petrochemical wastewater was studied in a pilot plant design. Dissolved oxygen, pH, temperature, and sludge age were controlled and measured. Ammonia concentration in the...

Full description

Saved in:

Bibliographic Details
Published in:	Journal - Water Pollution Control Federation 1988, Vol.60 (7), p.1245-1252
Main Authors:	Thiem, L. T., Alkhatib, E. A.
Format:	Article
Language:	eng
Subjects:	Activated sludge Ammonia Biological and medical sciences Biological treatment of waters Biotechnology Chemical oxygen demand Environment and pollution Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Oxygen Pilot plants Shock loads Sludge Sludge treatment Wastewater Water pollution
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	A modified activated sludge process that includes both carbonaceous and nitrogenous oxidation to reduce high levels of ammonia in petrochemical wastewater was studied in a pilot plant design. Dissolved oxygen, pH, temperature, and sludge age were controlled and measured. Ammonia concentration in the petrochemical wastewater used as the influent waste to the pilot plant was maintained up to 390 mg/L. Adaptation of the activated sludge biomass to the influent was accomplished with step-function shock loading. Subsequently, operation in the zero sludge wasting mode resulted in a low excess sludge production rate and the minimization of nitrifier washout and high percentage removals of ammonia, COD, BOD, and sulfide were measured.
ISSN:	0043-1303 2327-7467