Effect of artificial aeration, inoculation of bacteria and plant growth on nutrient removal from poultry wastewater in trickling columns fed with reactive media

Author: Lin Wang 1, 2, Guo-Xue Li 2, Florent Chazarenc 3, Chun-Xiang Liu 2 and Ji Li 2*
Received 11 January 2012, accepted 28 April 2012.
Abstract

Rapid infiltration systems are effective at removing nutrients from wastewater, and their purification efficiency can be improved by using selected substrates. We evaluated the effects of different substrates (sand mixed with 1, 3, 5 or 7% of cinder, diatomite, active carbon or fly ash) on nutrient removal of poultry wastewater capacities. The set up consisted of coarse concrete sand (1.0–2.0 mm) mixed with one of the tested reactive media. The best removal efficiency was obtained using a 7% weight ratio of cinder mixed with sand, where a removal efficiency of 93.6% and 96.9%, respectively, for chemical and biochemical oxygen demand (COD, BOD5), and of 70.1% and 99.7%, respectively, for total and ammonia nitrogen (TN, NH4+-N), and 96.8% for total phosphorus (TP), were observed. In a second phase, bioaugmentation techniques, including aeration, microorganism inoculation and plant growing, were tested to increase nutrient removal in a system using a sand substrate mixed with cinder at a weight ratio of 7%. The increase of performance was observed for 4% of TP, and 11% of TN by artificial aeration, inoculation of bacteria and plant growth.

Journal: Food, Agriculture and Environment (JFAE)
Print ISSN:1459-0255
Online ISSN: 1459-0263

Year: 2012, Vol. 10, Issue 2, pages 1041-1044.
Publisher: WFL.


Article Purchasing
 
Impact Factor


If you like to purchase this specific document  such as article, review or this journal issue, contact us.

Specify the title of the article or review, issue, number, volume and date of the publication.

Software and compilation, Science & Technology,  all rights reserved.

Your use of this website details or service is governed by terms of use.

Authors are invited to check from time to time news or information, read more>>>


Note to Users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.