Pilot Plant 규모의 폐주물사/하수슬러지 담체 특성 (A Study on Characteristics of Ceramic Support Manufactured)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 28권 / 5호 / 458 ~ 464페이지
· 저자명 : 이승희, 최효현, 박헌수

초록

Characteristics of ceramic support manufactured by the mixture of spent foundry sand (SFS) and sewage sludge (SS) in the pilot plant were studied. Furan sand among SFSs and sewage sludge, which comes from a wastewater treatment facility in A city, are used to make ceramic support in the pilot plant. Characteristics of ceramic support are estimated by bulk density, porosity, compressive strength, and chemical resistance. Since there are organic materials in sewage sludge, porosity is increased but compressive strength and chemical resistance are significantly decreased with increasing the content of sewage sludge. When the content of sewage sludge is less than 10wt%, porosity is more than 40% and compressive strength is greater than 30kg_f/cm^2. With respect to additives, woody waste and waste oil in forming ceramic support were used to improve porosity but to decline compressive strength and chemical resistance. When aluminum is used as an additive, porosity and chemical resistance are almost the same as those of commercial loess support but compressive strength is significantly increased. Hence, it may be desirable that the content of sewage sludge is less than 10% and aluminum is the optimal additive to manufacture ceramic support.

영어초록

Characteristics of ceramic support manufactured by the mixture of spent foundry sand (SFS) and sewage sludge (SS) in the pilot plant were studied. Furan sand among SFSs and sewage sludge, which comes from a wastewater treatment facility in A city, are used to make ceramic support in the pilot plant. Characteristics of ceramic support are estimated by bulk density, porosity, compressive strength, and chemical resistance. Since there are organic materials in sewage sludge, porosity is increased but compressive strength and chemical resistance are significantly decreased with increasing the content of sewage sludge. When the content of sewage sludge is less than 10wt%, porosity is more than 40% and compressive strength is greater than 30kg_f/cm^2. With respect to additives, woody waste and waste oil in forming ceramic support were used to improve porosity but to decline compressive strength and chemical resistance. When aluminum is used as an additive, porosity and chemical resistance are almost the same as those of commercial loess support but compressive strength is significantly increased. Hence, it may be desirable that the content of sewage sludge is less than 10% and aluminum is the optimal additive to manufacture ceramic support.

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