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Conference on Environmental Pollution and Public Health (CEPPH 2010 E-BOOK)

Wuhan,China,China,9.10-9.12,2010

ISBN: 978-1-935068-16-7 Scientific Research Publishing, USA

E-Book 1502pp Pub. Date: October 2010

Category: Engineering

Price: $80

Title: Study on the Treatment of Tannery Wastewater by Bio-Zeolite Reactor
Source: Conference on Environmental Pollution and Public Health (CEPPH 2010 E-BOOK) (pp 1161-1164)
Author(s): Shao-lan Ding, College of Resource and Environment, Shannxi University of Science and Technology, Xi’an, 710021, Shannxi, China
Zhen-yu Qu, College of Resource and Environment, Shannxi University of Science and Technology, Xi’an, 710021, Shannxi, China
Xiao-li Lei, College of Resource and Environment, Shannxi University of Science and Technology, Xi’an, 710021, Shannxi, China
Abstract: This article investigated the removal efficiency of ammonium and COD by biological-zeolite at different influent mode and different hydraulic retention time (HRT) afer start-up successfully. The results showed that the removal of pollutants at upflow mode was better than that of downflow mode that ammonium removal and COD removal rate could reach 95% and 85% respectively and ammonium concentration in worked water was less than 15mg/L; Ion exchange was the major contributor to ammonium removal at both influent modes and the average ion exchange rate was 76.15%, while downflow mode obviously strengthened nitrification by the average nitrification rate was 25.29%; The removal efficiency of COD by activated sludge and reaction column could reach the same effect that removal rate was higher than 80%; The removal efficiency of ammonium was over 75% in the reaction column and it even could reach 92% on the condition that HRT was 10h, and it had a good effect on the removal of ammonium in real tannery wastewater that the removal rate could reach 84.3%.
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