Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Sludge Disposal Analysis of Sanitary Paper Manufacturing Wastewater Treatment Plant

위생용지 생산 제지공장 폐수슬러지의 처리 현황

  • Received : 2013.05.29
  • Accepted : 2013.06.17
  • Published : 2013.11.30
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Abstract

The operating conditions of sludge disposal for sanitary paper manufacturing wastewater treatment plant were monitored on the basis of daily check sheets during the 3 years of operation. Generated wastes were mainly composed of 79% of sludge, 14% of ash, 5% of waste synthetic resin and 2% of etc. Maximum sludge was produced to 233 ton and the average was 113 ton daily, where the primary sludge occupied 85% and 15% for the secondary sludge. The concentration of coagulant for sludge dewatering was extremely exceeded and the additional experiment such as jar-test was required for the establishment of proper dosage. Presently, the generated sludges were partially treated outside and were also partly handled inside. In the future, most sludges will be expected to be treated to recycling material for the iron industry.

위생용지 제조 폐수처리장에서 발생하는 슬러지를 3년간의 일일 운전일지를 토대로 분석하였다. 발생 폐기물은 79% 슬러지, 14% 재, 5%의 합성폐기물 및 기타 2%로 구성되었다. 일일 최대 슬러지 생산량은 233톤, 평균 슬러지 생산량은 113톤으로 분석되었는데, 일차 슬러지가 85% 및 이차슬러지는 15%를 차지하였다. 슬러지 탈수용 응집제의 농도는 과량 주입되고 있어 적정 응집제 주입을 위해 주기적으로 쟈테스트와 같은 부가적인 실험에 의한 주입농도의 설정이 필요한 것으로 나타났다. 현재 발생되는 폐슬러지의 일부는 위탁처리되고 있고, 일부는 자체 처리되고 있지만, 장기적으로는 대부분의 폐슬러지가 제철소 슬러거의 진정재로 재활용될 계획이다.

Keywords

References

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