Properties of Laboratory Wastewater Having Influence Heavy Metals Treatment Efficiency by Chemical Precipitation

• Autorzy: Saengchut Phongthon , Ladtem Natthapong , Wonglertarak Watcharapol , Kokaphan Chanyakarn , Obpat Siraphob , Klaiklung Pattarawadee

Identyfikatory

DOI

10.12911/22998993/188787

• Języki publikacji: EN

Abstrakty

EN

The influence of laboratory wastewater properties on heavy metals treatment efficiency by the chemical precipitation included aluminium sulphate (Al₂(SO₄)₃) and poly aluminium chloride (PAC) using a stepwise multiple regression method. The laboratory wastewater properties showed high acidity approximately 0.75 and a highly turbid approximately 667.41 NTU that TSS (705.48 mg/L), COD (480.00 mg/L) and heavy metals such as Zn did not exceed the standards while Cu, Mn and Cr have levels exceeded the standards. Aluminium sulphate Al₂(SO₄)₃) coagulant has treatment efficiency for reducing heavy metals at a pH of 9.00 to 73.62%, 99.94%, 98.43%, 68.76% and 99.25% for various heavy metals (Cu, Fe, Mn, Zn and Cr) respectively with original laboratory wastewater properties that parameters of laboratory wastewater include TSS, BOD, and pH having the highest influence on heavy metals treatment efficiency. The parameters of laboratory wastewater having the highest influence on heavy metals treatment efficiency when using poly aluminium chloride (PAC) were pH, COD, DO, and BOD when at a pH of 9.00 has treatment efficiency for reducing heavy metals to 73.67%, 99.94%, 98.45%, 69.76%, and 99.26% for various heavy metals (Cu, Fe, Mn, Zn, and Cr) respectively.

Słowa kluczowe

EN

chemistry; laboratory wastewater; chemical precipitation; heavy metals

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2024
• Tom: Vol. 25, nr 8
• Strony: 72--83
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Saengchut Phongthon

• Occupational Health and Safety Program, Faculty of Science, Ubon Ratchathani University, Thailand

• https://orcid.org/0000-0002-5531-4862

autor

Ladtem Natthapong

• Center of Research and Academic Services, Faculty of Environment, Kasetsart University, Thailand

autor

Wonglertarak Watcharapol

• Environmental Engineering and Disaster Management Program, Mahidol University, Kanchanaburi campus, Thailand

autor

Kokaphan Chanyakarn

• Occupational Health and Safety Program, Faculty of Science, Ubon Ratchathani University, Thailand

autor

Obpat Siraphob

• Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Thailand

autor

Klaiklung Pattarawadee

• Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Thailand

Bibliografia

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