This study aims to optimize the self-flocculation ability of microalgae sp. CHX1 by the response surface methodology (RSM). Key parameters (i.e. pH, temperature and flocculation time) that significantly affected the sp.CHX1 flocculation were determined. Results show that the flocculation efficiency of sp.CHX1 increased in response to the prolonged settling time, particularly within the first 6 h, given the secretion of extracellular polymers. The RSM result suggested that both temperature and time exerted more significant effects on flocculation efficiency than solution pH. In specific, the maximum flocculation efficiency could reach 94.0% under the optimal conditions with the temperature, time and pH of 12.37°C, 6.96 h and 7.98, respectively. Validation experiments further indicated the reliability of the optimal parameter conditions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/09593330.2021.1892831 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Study on Fluidity and Deposition Characteristics of Air-Containing Filling Slurry.
ACS Omega
December 2024
Norin Mining Limited, Beijing 100053, China.
With the continuous exploitation of global mineral resources, backfill technology for gob areas has become a crucial aspect of mine safety and sustainable development. As a primary method of gob area backfill, slurry backfill directly relates its flow properties and filling height to the efficiency and safety of mine extraction. To enhance the flow properties of the slurry and increase its filling height, a research study on the flow and deposition characteristics of a gas-containing filling slurry was conducted using a combination of theoretical analysis, laboratory experiments, and field tests.
View Article and Find Full Text PDFGaining comprehensive insight into the effect of electrocoagulation integrated in a membrane bioreactor on the detergent manufacturing plant wastewater treatment and membrane fouling.
Chemosphere
December 2024
School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran.
This study evaluated the integration of electrocoagulation into a lab-scale membrane bioreactor (EC-MBR) for treating wastewater from a detergent manufacturing plant. The EC-MBR system achieved a higher chemical oxygen demand (COD) and anionic surfactant removal efficiencies of 95.1% and 99.
View Article and Find Full Text PDFSynergistic effects of ozonation pretreatment and trace phosphate on water quality health risk and microbial stability in simulated drinking water distribution systems.
J Hazard Mater
December 2024
Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
The proliferation and chlorine resistance of pathogenic bacteria in drinking water distribution systems (DWDSs) pose a serious threat to human health. In this study, the synergistic effects of ozonation pretreatment and trace phosphate on water quality health risk and microbial stability were investigated in the small-scale DWDSs simulated by biofilms annular reactors with cast iron coupons. The results indicated that ozonation of drinking water containing trace phosphate was equivalent to increasing microbial carbon and phosphorus sources, further leading to the rapid proliferation of opportunistic pathogens (OPs) in subsequent DWDSs.
View Article and Find Full Text PDFGreen coagulation and flocculation: Scenedesmus algal extract-loaded chitosan/poly(vinyl alcohol) cryogel for effective water treatment.
Int J Biol Macromol
December 2024
Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia.
This study presents an eco-friendly approach to treat contaminated and turbid water through the development of cryogels loaded with bioactive compounds derived from Scenedesmus algal extract (ScAE) based on chitosan/poly(vinyl alcohol) (Cs/PVA) matrix. Scenedesmus sp., a green microalga known for its bioactive properties, was cultivated and processed to obtain extracts with coagulation potential.
View Article and Find Full Text PDFSimultaneous removal of Microcystis aeruginosa and microplastics by oxidation enhanced coagulation.
Environ Pollut
December 2024
Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge, 119260, Singapore. Electronic address:
The composite pollution is an increasingly severe challenge in the field of water treatment. Especially, microplastics (MPs) contamination and Microcystis aeruginosa (M. aeruginosa) were verified that they could synergistically pose a serious threat to safety of drinking water.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!