최용수 홍석원 권기한 정일호 2024-01-21T07:32:15Z 2024-01-21T07:32:15Z 2021-09-06 2004-03 2289-0971 https://pubs.kist.re.kr/handle/201004/137795 The combination of biological and physical/chemical technologies is a promising technique to reduce highly concentrated pollutants in livestock wastewater. It is suggested to treat livestock wastewater efficiently as follows: firstly, biodegradable organic matters, nitrogen and some of phosphorus should be removed by a biological treatment process and then residual non-biodegradable organic matters, color and phosphorus be eliminated by physicochemical technologies. In this study, therefore, the integrations of chemical coagulation, activated carbon adsorption, Fenton oxidation and ozonation were evaluated to provide appropriate post-treatment processes for biologically pre-treated livestock wastewater. After chemical coagulation followed by ozonation or Fenton oxidation process, the quality of treated wastewater could meet the discharge limit in Korea. However, a yellowish brown color still remained in the treated wastewater after a single method such as coagulation and Fenton oxidation was applied. The ozonation was found to be the most effective technology for the decolorization. Neither simple biological nor physicochemical treatment provides adequate decolorization and sufficient depletion of organics in livestock wastewater so far. Consequently, the integration of Fenton oxidation and ozonation with a biological treatment process is recommended to treat livestock wastewater in terms of removal efficiency. Korean 한국물환경학회 축산폐수 생물학적 처리수의 후처리를 위한 물리 · 화학적 단위 공정 비교 Comparisons of Physical and Chemical Methods for Dealing with Biologically Pre-Treated Livestock Wastewater as a Post-Treatment Article 2 한국물환경학회지, v.20, no.2, pp.110 - 119 한국물환경학회지 20 2 110 119 N kci ART001132419 Biologically Pre-treated Livestock Wastewater Color Non-biodegradable Organic Matters Phosphorus Physicochemical Technologies