<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=undefined&type=result"></script>');
-->
</script>

COPY SCRIPT

For further information contact us at helpdesk@openaire.eu

Combined treatment of alkaline and disperser for improving solubilization and anaerobic biodegradability of dairy waste activated sludge

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Dec 2012Publisher:Elsevier BVJournal:Bioresource Technology, volume 126, pages 107-116 (issn: 0960-8524,

Authors: J. Rajesh Banu; S. Kaliappan; R. Uma Rani; S. Adish Kumar;

doi: 10.1016/j.biortech.2012.09.027

pmid: 23073096

Combined treatment of alkaline and disperser for improving solubilization and anaerobic biodegradability of dairy waste activated sludge

- Summary
- Subjects
- Metrics

Abstract

An investigation into the influence of combined alkaline and disperser pretreatment on sludge disintegration was studied. The effects of four variables, alkalines (NaOH, KOH, Ca(OH)(2)), treatment time (15-180 min), pH (8-11) and rpm (4000-24,000) were investigated. The effect of sludge pretreatment was evaluated by COD solubilization, suspended solids reduction and biogas production. The best performances, in terms of COD solubilization, SS reduction and biogas production, were the ones that occurred for specific energy input of 4544 kJ kg(-1) TS for NaOH at pH10, were found to be 24%, 23.3% and 76%, higher than the control, respectively. Not only the increase in biogas production was investigated, excluding protein hydrolysis was also performed successfully by this combined pretreatment even at low specific energy input. Thus, this chemo-mechanical is an effective method for enhancement of biodegradability and it laid the basis to produce higher biogas quantities, to improve clean energy generation from WAS.

Related Organizations

Anna University, Chennai
India

Keywords

Biological Oxygen Demand Analysis, Bacteria, Sewage, Temperature, Alkalies, Solid Waste, Dairying, Kinetics, Biodegradation, Environmental, Solubility, Biofuels, Carbohydrate Metabolism, Sodium Hydroxide, Anaerobiosis, Methane, Biotechnology, Mechanical Phenomena

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	91
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%