Study of swim-bed technology for COD removal and nitrification for latex wastewater treatment
by Nguyen Le; Bui Xuan Thanh; Nguyen Phuoc Dan
International Journal of Global Environmental Issues (IJGENVI), Vol. 12, No. 2/3/4, 2012

Abstract: COD removal and nitrification by swim-bed technology using a novel carrying acryl-fibre biomass carrier (biofringe) was conducted to investigate its effectiveness for latex wastewater treatment. The influent taken from a rubber factory contained 2,000 to 3,500 mg/l COD, 150 to 300 mg/l ammonia-N and 250 to 500 mg/l TKN. The quality of latex wastewater is unstable, depending on seasonal latex production. The results showed that COD removal and nitrification efficiency were high at the volumetric loading rates (VLRs) equal and less than 1.0 kg COD/m³/d, corresponding to 0.13 kg N/m³/d. COD removal and nitrification efficiency were above 90% and 73%, respectively. At the VLR of 2 kg COD/m³/day (0.24 kg N/m³/d), nitrification efficiency was reduced to 56%, while COD removal were still above 90%. At the VLR as high as 3 kg COD/m³/d (0.4 kg N/m³/d), low COD removal and nitrification efficiency were observed, 86% and 20%, respectively. Biomass concentration increased as the increase of VLRs. Total biomass was 6,800 mg/l and 7,900 mg/l at VLRs of 2 and 3 kg COD/m³/d, respectively.

Online publication date: Thu, 28-Aug-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Global Environmental Issues (IJGENVI):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com