차아염소산과 철염을 이용한 하수슬러지의 탈수효과
The Effect of the Use of Sodium Hypochlorite and Iron Salts on Sewage Sludge Dewaterability
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초록
This study investigated improvement to sludge dewaterability and coagulation for sewage treatment plant sludge by using sodium hypochlorite solution (NaOCl), ferric sulfate [Fe2(SO4)3] andzeolite. The specific resistance to filtration( SRF), chloride, pH and turbidity were used to evaluate the sludge dewatering behaviors. The results of study were as follows : By varying the amount of NaOCl added the optimum result in terms of enhancement for pretreatment occurred when 34 ㎎/ℓ of NaOCl was injected. When the total solids concentration of the sludge was 10,000 ㎎/ℓ, the optimum ferric sulfate dosage for the sludge dewaterability was 150 ㎎/ℓ and the corresponding SRF was 1.7×107 sec2/ g. It was observed that injecting zeolite into sludge was effective in improving the dewaterability of sludge.
Abstract
This study investigated improvement to sludge dewaterability and coagulation for sewage treatment plant sludge by using sodium hypochlorite solution (NaOCl), ferric sulfate [Fe2(SO4)3] andzeolite. The specific resistance to filtration( SRF), chloride, pH and turbidity were used to evaluate the sludge dewatering behaviors. The results of study were as follows : By varying the amount of NaOCl added the optimum result in terms of enhancement for pretreatment occurred when 34 ㎎/ℓ of NaOCl was injected. When the total solids concentration of the sludge was 10,000 ㎎/ℓ, the optimum ferric sulfate dosage for the sludge dewaterability was 150 ㎎/ℓ and the corresponding SRF was 1.7×107 sec2/ g. It was observed that injecting zeolite into sludge was effective in improving the dewaterability of sludge.
참고문헌 (15)
- 성일화, "펜톤산화에 따른 복합폐수의 처리효율연구", 한국환경보건학회지, 32(5), pp.446~450 (2006), 한국환경보건학회
- 나승민, "Enhanced dewaterability and physico-chemical characteristics of digested sewage sludge by ultrasonic treatment", Journal of Korea Society of Waste Management, 22(7), pp.637~644 (2005), 한국폐기물자원순환학회
- Son, D. H., "Development of processes for treatment of nitrogenous wastewaters by biological regeneration of zeolite", 박사, pp.2002
- 이병헌, "오존을 이용한 하수슬러지의 감량화와 안정화", 수질보전 한국물환경학회지, 20(3), pp.290~295 (2004), 한국물환경학회
- Hwang, S. Y., "The effect of ozone of the improvement of dehydration in treatment of sewage sludge measuring SRF", Korean Journal of Environmental Health Society, 19(4), pp.44~50 (1993)
- 이정언, "하수슬러지의 탈수율 향상을 위한 열 탈수 연구", 대한환경공학회지, 26(5), pp.601~609 (2004), 대한환경공학회
- Ch ang, G . R., "Co-conditioning and dewatering of chemical sludge and waste activated sludge", Water Research, 35(3), pp.786~794 (2001)
- 남영우, "과산화수소에 의한 탈수 슬러지로부터 유기산 생성 특성", 대한환경공학회지, 26(6), pp.649~656 (2004), 대한환경공학회
- Kwon, J . H., "T h e improvement of sewage sludge dewaterability using H2O2 and Iron salts", 2003 Academic Conference Journal of Korean Society on Water quality, pp.B55~B58 (2003)
- Ministry of Environment, "Standard methods for water quality", ~ (2007)
- Cho, Y. M., "Dewatering of digested sludge using briquette ash as a filter aid", pp.1984
- Li, X. M, "Removal of carbon and nutrients from low strength domestic wastewater by expanded granular sludge bed- zeolite bed filtration(EGSB-ZBF)integrated treatment concept", Process Biochemistry, 42, pp.1173~1179 (2007)
- APHA, "Standard methods for the examination of water and wastewater, 21st", ~ (2005)
- 오철, "초음파처리에 의한 하수슬러지의 탈수성 향상", 한국폐기물자원순환학회지, 19(8), pp.927~932 (2002), 한국폐기물자원순환학회
- 이병헌, "전기분해를 이용한 하수 슬러지 감량", 수질보전 한국물환경학회지, 22(2), pp.264~270 (2006), 한국물환경학회