eprintid: 12542
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/25/42
datestamp: 2023-11-10 03:27:06
lastmod: 2023-11-10 03:27:06
status_changed: 2023-11-10 01:48:57
type: article
metadata_visibility: show
creators_name: Chua, S.-C.
creators_name: Show, P.L.
creators_name: Chong, F.-K.
creators_name: Ho, Y.-C.
title: Lentil waste as novel natural coagulant for agricultural wastewater treatment
ispublished: pub
keywords: Agricultural robots; Agriculture; Aluminum compounds; Chemical oxygen demand; Chemical water treatment; Coagulation; Economic analysis; Reclamation; Soil moisture; Sulfur compounds; Turbidity; Wastewater treatment; Water pollution, Agricultural irrigation; Agricultural wastewater; Anthropogenic process; Box-Behnken design; Effective solution; Response surface methodology; Soil moisture deficits; Sustainable solution, Waste treatment, aluminum sulfate; coagulating agent; aluminum potassium sulfate, activated sludge; anthropogenic effect; coagulation; hazardous waste; innovation; optimization; waste technology; wastewater treatment, agricultural waste; Article; chemical oxygen demand; concentration (parameter); cost benefit analysis; flocculation; lentil; pH; response surface method; sludge disposal; sludge management; turbidity; waste component removal; waste water management; water sampling; biochemical oxygen demand; sewage; waste water; water management, Lens culinaris, Alum Compounds; Biological Oxygen Demand Analysis; Lens Plant; Sewage; Waste Disposal, Fluid; Waste Water; Water Purification
note: cited By 5
abstract: Increasing agricultural irrigation to counteract a soil moisture deficit has resulted in the production of hazardous agricultural wastewater with high turbidity and chemical oxygen demand (COD). An innovative, sustainable, and effective solution is needed to overcome the pollution and water scarcity issues caused by the agricultural anthropogenic processes. This research focused on a sustainable solution that utilized a waste (broken lentil) as natural coagulant for turbidity and COD removal in agricultural wastewater treatment. The efficiency of the lentil extract (LE), grafted lentil extract (LE-g-DMC) and aluminium sulphate (alum) coagulants was optimized through the response surface methodology. Three-level Box-Behnken design was used to statistically visualize the complex interactions of pH, concentration of coagulants and settling time. LE achieved a significant 99.55 and 79.87 removal of turbidity and COD at pH 4, 88.46 mg/L of LE and 6.9 minutes of settling time, whereas LE-g-DMC achieved 99.83 and 80.32 removal of turbidity and COD at pH 6.7, 63.08 mg/L of LE-g-DMC and 5minutes of settling time. As compared to alum, LE-g-DMC required approximately 30 less concentration. Moreover, LE and LE-g-DMC also required 75 and 65 less settling time as compared to the alum. Both LE and LE-g-DMC produced flocs with excellent settling ability (5.77 mg/L and 4.48 mL/g) and produced a significant less volume of sludge (10.60 mL/L and 8.23 mL/L) as compared with the alum. The economic analysis and assessments have proven the feasibility of both lentil-based coagulants in agricultural wastewater treatment. © 2020 IWA Publishing. All rights reserved.
date: 2020
publisher: IWA Publishing
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096348885&doi=10.2166%2fwst.2020.409&partnerID=40&md5=7bd7c48fac148f6283e42b2bbadb64a4
id_number: 10.2166/wst.2020.409
full_text_status: none
publication: Water Science and Technology
volume: 82
number: 9
pagerange: 1833-1847
refereed: TRUE
issn: 02731223
citation:   Chua, S.-C. and Show, P.L. and Chong, F.-K. and Ho, Y.-C.  (2020) Lentil waste as novel natural coagulant for agricultural wastewater treatment.  Water Science and Technology, 82 (9).  pp. 1833-1847.  ISSN 02731223