Solids Reduction Process for Agricultural Effluent – A Laboratory Feasibility Study
Asian Journal of Advances in Agricultural Research · pp. 75–88 · Published 31 Oct 2023
10.9734/ajaar/2023/v23i3470Abstract
Process steps of flocculation, filtration and centrifugation are investigated to better utilizing existing storage capacity of agriculturally based effluents and at the same time minimize the environmental impact of agricultural operations. As flocculant Ca(OH)2 as a 20% solution, FeCl3 as a 30% solution, and Al2(SO4)3 as a 20% solution were used. The solids content of the liquid manure, having a preadjusted pH of 9.5, resulted in a solids reduction of up to 46.8% with centrifugation. For all flocculants, the 20% Ca(OH)2 solution, the 30% FeCl3 solution, and the 20% Al2(SO4)3 solution resulted in a decrease of the solids content of the liquid manure. FeCl3 as flocculant reduced the solids content by 45%, Al2(SO4)3 and Ca(OH)2 as flocculant by 21.0% after the second centrifugation process. Filtration as the fourth process step reduced the solids content further by 31.6% for the Ca(OH)2 flocculant, whereas for FeCl3 and Al2(SO4)3 as flocculant and increase of the solids content by 18.2% and 2.5% respectively resulted. The flocculant Ca(OH)2 outperformed FeCl3 and Al2(SO4)3 by 71.2%, 65.4%, and 56.9% respectively. A Maximum COD removal rate of 47/8% could be realized without flocculant and 70.6% COD removal rate could be utilized using FeCl3 as flocculant applying a second centrifugation process.
References (7)
- 1 Emissions of Ammonia, Methane, Carbon Dioxide, and Nitrous Oxide from Dairy Cattle Housing and Manure Management Systems [DOI]
- 2 From Fossil Fuels to Renewable Biogas Production from Biomass Based Feedstock – A Review of Anaerobic Digester Systems [DOI]
- 3 Oxygen Demand, Chemical [DOI]
- 4 Performance of a dairy manure anaerobic lagoon [DOI]
- 5 Ammonia emissions from an in-ground finisher hog manure tank [DOI]
- 6 Application of a Sludge Blanket Reactor for Effluent Treatment: A Laboratory Study [DOI]
- 7 Application and Testing of a Laboratory Biotower Septic Tank System for Effluent Treatment - A Laboratory Study [DOI]
Cited by 0
No indexed citations yet.
Related research
- Bacterial and Fungal Contaminants in Mycobacterium tuberculosis Cultures at National Tuberculosis Referral Laboratory-Kampala — shares topic coverage
- Bacteriological Analysis of Drinking Water in Zamfara North Senatorial District, Nigeria — shares topic coverage
- Polyethylene Biodegradation Potentials of Pseudomonas aeruginosa and Micrococcus sp. Isolated from Waste Dumps and Farmlands in Nsukka, Enugu State, Nigeria — shares topic coverage
- Bacteriological Evaluation of Indoor Air Quality in Some Selected Units at the University of Cape Coast Hospital in Ghana — shares topic coverage
- Persistent Microbial Contaminants in Hawked ‘OGI’ and Public Health Concerns in COVID-19 Era — shares topic coverage
Article metrics
Real usage data collected on this platform.
47
Page views
0
PDF downloads
9
Outbound clicks
0
Citations
Views over time
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
Traffic sources
Referring site, by host.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.