Título

APPROACH TO ACHIEVE COMPLIANCE WITH WASTEWATER DISCHARGE REGULATIONS IN BRAZIL FOR BY-PRODUCT COKE PLANTS

APPROACH TO ACHIEVE COMPLIANCE WITH WASTEWATER DISCHARGE REGULATIONS IN BRAZIL FOR BY-PRODUCT COKE PLANTS

Autoria

Jr., Sam E. Shelby; Taylor, Donald; Olthof, Meint; Jr., Carl E. Adams

Jr., Sam E. Shelby

Eu sou esse autor

Taylor, Donald

Eu sou esse autor

Olthof, Meint

Eu sou esse autor

Jr., Carl E. Adams

Eu sou esse autor

DOI

10.5151/2594-5327-16792

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Resumo

Wastewaters from By-product Coke Oven Plants are among the most difficult-to-treat industrial wastewaters and present unique challenges to achieve the stringent discharge regulations now effective in Brazil. ENVIRON has designed numerous biological treatment systems to remove (in sequence of regulatory requirements) Phenolics, Thiocyanate, Ammonia-nitrogen, and finally Nitrate-nitrogen. Now physical-chemical treatment processes are required to achieve low levels of for Total Cyanide, Selenium, Fluoride, and COD. The presentation will include concepts and selected details from recent coke plant projects, including several from Brazil. Key items to be addressed include methods for biological treatment of coke oven wastewaters for organics and total nitrogen removal, and treatment methods for Total Cyanide, Selenium, and Fluoride compliance. Key performance data will be presented to demonstrate the approach and concepts presented.

Wastewaters from By-product Coke Oven Plants are among the most difficult-to-treat industrial wastewaters and present unique challenges to achieve the stringent discharge regulations now effective in Brazil. ENVIRON has designed numerous biological treatment systems to remove (in sequence of regulatory requirements) Phenolics, Thiocyanate, Ammonia-nitrogen, and finally Nitrate-nitrogen. Now physical-chemical treatment processes are required to achieve low levels of for Total Cyanide, Selenium, Fluoride, and COD. The presentation will include concepts and selected details from recent coke plant projects, including several from Brazil. Key items to be addressed include methods for biological treatment of coke oven wastewaters for organics and total nitrogen removal, and treatment methods for Total Cyanide, Selenium, and Fluoride compliance. Key performance data will be presented to demonstrate the approach and concepts presented.

Palavras-chave

Coke plant wastewater biological treatment; Nitrification; Denitrification; Cyanide; Selenium; Fluoride removal.

Coke plant wastewater biological treatment; Nitrification; Denitrification; Cyanide; Selenium; Fluoride removal.