Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A simple and efficient alternative treatment for different drinking water
A bench–scale experiment was performed to assess whether union use of ferrate (Fe(VI)) and ferric (Fe(III)) addition in real surface water (reservoir and river water) resulted in better water remediation. The results indicated that increased Fe dosage improved the treatment performance, the removals of total coliform, turbidity and DOC were better when the mass ratio of Fe(VI): Fe(III) was 1:2 and pH was 8, regardless of the water source. Alkalescency condition benefits Fe(III) coagulation and Fe(VI) disinfection efficiency due to the better stability and greater exposure to Fe(VI). Union use of Fe(VI) and Fe(III), as a coagulant and oxidant to enhance flocculation precipitation, can simultaneously remove turbidity, degraded natural organic matter (NOM) degradation, and destroy bacterial activity. At optimized dosage and pH, chemical oxidation plays the dominant role in the disinfection performance and secondary removal of DOC for Fe(VI) treatment, while for the mechanisms of Fe(III), coagulation and adsorption make the dominant contribution to the removal of turbidity and DOC. The application of the optimal ratio can maximize the advantages of both Fe(VI) and Fe(III), and enables the maximum purification effectiveness at minimum dosage and cost, so it will be a simple and efficient treatment for different drinking water. HIGHLIGHTS Alkalescency condition benefits Fe(III) coagulation and Fe(VI) disinfection efficiency due to the better stability and greater exposure to Fe(VI).; The application of the optimal ratio can maximize the advantages of both Fe(VI) and Fe(III), and enables the maximum purification effectiveness at minimum dosage and cost.;
A simple and efficient alternative treatment for different drinking water
A bench–scale experiment was performed to assess whether union use of ferrate (Fe(VI)) and ferric (Fe(III)) addition in real surface water (reservoir and river water) resulted in better water remediation. The results indicated that increased Fe dosage improved the treatment performance, the removals of total coliform, turbidity and DOC were better when the mass ratio of Fe(VI): Fe(III) was 1:2 and pH was 8, regardless of the water source. Alkalescency condition benefits Fe(III) coagulation and Fe(VI) disinfection efficiency due to the better stability and greater exposure to Fe(VI). Union use of Fe(VI) and Fe(III), as a coagulant and oxidant to enhance flocculation precipitation, can simultaneously remove turbidity, degraded natural organic matter (NOM) degradation, and destroy bacterial activity. At optimized dosage and pH, chemical oxidation plays the dominant role in the disinfection performance and secondary removal of DOC for Fe(VI) treatment, while for the mechanisms of Fe(III), coagulation and adsorption make the dominant contribution to the removal of turbidity and DOC. The application of the optimal ratio can maximize the advantages of both Fe(VI) and Fe(III), and enables the maximum purification effectiveness at minimum dosage and cost, so it will be a simple and efficient treatment for different drinking water. HIGHLIGHTS Alkalescency condition benefits Fe(III) coagulation and Fe(VI) disinfection efficiency due to the better stability and greater exposure to Fe(VI).; The application of the optimal ratio can maximize the advantages of both Fe(VI) and Fe(III), and enables the maximum purification effectiveness at minimum dosage and cost.;
A simple and efficient alternative treatment for different drinking water
Huiqin Zhang (Autor:in) / Renwei Li (Autor:in) / Shulian Wang (Autor:in) / Kewu Pi (Autor:in) / Yafei Shi (Autor:in) / Andrea R. Gerson (Autor:in) / Shengqiang Hei (Autor:in)
2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Natural Engineered Systems: A Sustainable Alternative for Drinking Water Treatment
| British Library Conference Proceedings | 2010
Drinking Water Treatment - Financial sustainability key to drinking water supply
Online Contents | 2011
Simple methods for evaluating the population of naidids in drinking water treatment plants
| British Library Online Contents | 2000
Coagulation in Drinking Water Treatment
| British Library Conference Proceedings | 1993
Simple methods for evaluating the population of naidids in drinking water treatment plants
| Online Contents | 2000