• Title, Summary, Keyword: Livestock wastewater

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Study on the Characteristics of Livestock Wastewater Treatment by Ionized Gas (이온화가스에 의한 축산폐수 처리 특성에 관한 연구)

  • Chung, Paul-Gene;Lee, Eun-Ju;Kim, Min-Jeong
    • Journal of Korean Society on Water Environment
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    • v.20 no.1
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    • pp.37-41
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    • 2004
  • This paper was studied about the characteristics of treatment by ionized gas for livestock wastewater, aiming at the effects of ionized gas on organic matter, hydrophobic and hydrophilic organic matter in livestock wastewater when the new process of advanced oxidation process was applied for meeting the improved the quality of effluent. The organic matter within treated livestock wastewater by ionized gas was partially mineralized according to the time increasement. The $TCOD_{Mn}$ in the livestock wastewater was decreased from 840mg/L to 340mg/L when treated by ionized gas by the enhancement of time. We occupied the equations of $TCOD_{Cr}$, $SCOD_{Cr}$, $TCOD_{Mn}$ and $SCOD_{Mn}$ as to ionized gas treated time. As $TCOD_{Mn}$ increasing ionized gas treated time, the concentration did not meet the water quality, $COD_{Mn}$ 4Omg/L. So, for removing of the remaining organic matter in the efflent after ionized gas, following process is necessary. After treating the livestock wastewater by ionized gas, coagulation was considerable for organic matter removal up to regulation water quality. From UV scans of the treated livestock wastewater by ionized gas, the wastewater has low aromaticity and good colour.

The Effect of Clarification by Aquatic Plant on Livestock Wastewater (수생식물에 의한 축산폐수의 오염물질 감소 효과)

  • Jeong, K.H.;Kim, W.H;Kim, M.J.;Seo, S.;Choi, G.C.;Cho, Y.M.;Kim, Y.K.
    • Journal of Animal Environmental Science
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    • v.6 no.2
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    • pp.83-89
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    • 2000
  • In general, livestock wastewater consists of many pollutants such as nitrogen, phosphorus, carbonic compounds and inorganic substances. Most carbonic and organic compounds are sufficiently removed by conventional secondary processes, but nitrogen, phosphorus and soluble inorganic compounds are little removed by traditional clarification process. These remained substances in wastewater, for instances, phosphorus and nitrogen are efficiently eliminated by advanced wastewater treatment or botanical removing process. Concentrations of $BOD_s$, SS, T-N and T-P in influent livestock wastewater used in this study were 126mg/l, 115mg/l, 45mg/l and 13mg/l, respectively. The hydraulic retention time(HRT) of wastewater was about 10 days in the pond packed with aquatic plants. A water-hyacinth and a water-dropwort were used as an experimental stuff plant. The removal ratios of nitrogen was 44.3% for the water-hyacinth and 40.2% for the water-dropwort. The removal efficiency of phosphorus in experimental ponds reached by 57.9% for the water-hyacinth and 58.5% for the water-dropwort for 10 days, respectively. Removal ratios of BODs and SS of livestock wastewater for 10 days were reached by 80.1%, 91.0% for he water-hyacinth, respectively. At the same condition, the removal ratios of BODs and SS were reached by 75.0%, 87.6% for the water-dropwort, respectively.

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Total assessment for phosphorus input load of public wastewater and livestock manure treatment facilities in Korea (우리나라 공공하수처리시설 및 가축분뇨공공 처리시설의 인(P) 유입부하량에 대한 총량평가)

  • Kim, Weonjae
    • Journal of Korean Society of Water and Wastewater
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    • v.32 no.4
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    • pp.325-335
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    • 2018
  • The annual total phosphorus load caused by public wastewater, nightsoil and livestock manure treatment facilities in Korea has been examined macroscopically. Annual domestic average phosphorus (P) inflows through the income of phosphate rock for the last five years (2012 - 2016) were analyzed as 76,598 tons/year. As of the year 2015, the total loadings of phosphorus attributed to public wastewater treatment facilities, nightsoil treatment facilities and livestock wastewater were estimated as 30,269 tons/year, 1,909 tons/year and 18,138 tons/year, respectively. Considering the amount of phosphorus imports, the annual phosphorus load from wastewater, livestock wastewater and excretions is equivalent to 39.5%, 23.7%, 2.5% and totally 65.7%(39.5% + 23.7% + 2.5%). Therefore, the introduction of phosphorus recovery and recycling processes for the public wastewater and livestock manure treatment facilities has been found to be effective because it could reduce the import amount of phosphate rock by up to 60% or more.

On-Line Measurement of Biochemical Oxygen Demand of livestock Wastewater by Multi-Biosensor System (Multi-Biosensor를 이용한 축산폐수의 생물화학적 산소요구량 실시간 측정방법 연구)

  • Kim, Jin-Kyeung;Kim, Tai-Jin
    • KSBB Journal
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    • v.21 no.4
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    • pp.241-247
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    • 2006
  • The present study was intended to examine a basic scheme to determine the biochemical oxygen demand(BOD) of livestock wastewater by means of six individual dissolved oxygen(DO) sensors and its multi-measurable meter. Maximal point of the first order time derivative of the DO difference between DO distribution of sterilized livestock wastewater and that of non-sterilized livestock wastewater, was considered as the oxygen uptake rate(OUR) of microorganisms in livestock wastewater, as determined to be 0.00074 mg $O_2/{\ell}{\cdot}sec$. The present study showed that there was a fair linear relationship(97.72%) between maximal OUR and BOD values of livestock wastewater, the latter being determined by classical Winkler azide method. It was thus concluded that the present multi-biosensor system might be applicable to an on-line system for measurement of BOD of livestock wastewater.

Comparative Study on Loading Rate of Main Pollution Sources in Han-River (한강수계의 주요 오염원별 부하량 비교분석)

  • Kang, Sung-Hwan;Koo, Bon-Soo;Rim, Jay-Myoung
    • Journal of Industrial Technology
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    • v.18
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    • pp.399-404
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    • 1998
  • The purposes of this research were constructed the database, based on graphing the present water pollution in Han-river due to livestock wastewater(LSW). The LSW was below 1% in respect to quantity but about 7% in respect to pollutants loading in overall Han-river. The ratio of untreated LSW is 18% to 28%, which was higher compared to the municipal and industrial wastewater. In other words, LSW was about 0.05 times of municipal wastewater in respects to quantity but 2 times in respect to the ratio of untreated wastewater. So, it was necessary for treating LSW. The pollutants loading due to livestock wastewater of the South Han-river, North Han-river and main stream were 19.7%, 19.4% and 4.0%, respectively. This was about 7% in overall Han-river. We separated the Han-river into upper, mid and down stream. As a result, we found that the livestock wastewater is the main water pollution source of upper Han-river.

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Comparisons of Physical and Chemical Methods for Dealing with Biologically Pre-Treated Livestock Wastewater as a Post-Treatment (축산폐수 생물학적 처리수의 후처리를 위한 물리·화학적 단위 공정 비교)

  • Choi, Yong-Su;Hong, Seok-Won;Kwon, Gi-han;Jung, Il-Ho
    • Journal of Korean Society on Water Environment
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    • v.20 no.2
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    • pp.110-119
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    • 2004
  • 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.

Livestock Wastewater Treatment by Burkholderia cepacia (Burkholderia cepacia를 이용한 축산폐수의 처리)

  • Chung, Paul-Gene;Jo, Seon Yeong;Hyun, Mi-Hee;Kim, Min Jeong;Lee, Eun-Ju;Jeon, Min Sik
    • Journal of Korean Society on Water Environment
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    • v.20 no.6
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    • pp.547-554
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    • 2004
  • We found that the Bacterium Burkholderia cepacia in livestock wastewater treatment plant was predominant species. We investigated the growth rate of this and treatment characteristics for organic matter and nitrogen removal in livestock wastewater using this microorganism. First, we cultured B. cepacia. And then, to conducted treatment for livestock wastewater by using B. cepacia., we changed C/N from 0.2~4.4. When we operated A and B process, changing F/M ratio from 1.2 to 4.4. In experiment of C/N variations, when C/N was 1.8, we found that the optimal condition for organic matter and nutrient removal effect was higher and the removal efficiency of $SCOD_{cr}$, $SBOD_5$,$NH_4-N$ was 78.4%, 95% and 74.8%. So, It is possible to treat the wastewater having the lower C/N contents such as livestock wastewater using this microorganism. In experiment of A and B process for livestock wastewater, we found that the removal efficiency of organic matter and nitrogen in operating mode of A process was higher than that of B process. Also, the optimal F/M operating A process was 0.013 and the removal efficiency of $SBOD_5$, $SCOD_{cr}$, TN and TP were 97%, 60%, 95% and 91%.

Livestock Wastewater Treatment by Zeolite Ion Exchange and Gamma-ray Irradiation (제올라이트와 감마선을 이용한 축산 폐수 처리)

  • Lee, Sang-Ryul;Kim, Tak-Hyun;Lee, Myun-joo
    • Journal of Radiation Industry
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    • v.2 no.1
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    • pp.9-14
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    • 2008
  • Livestock wastewater containing high concentrations of organic matters and ammonia-nitrogen has been known as one of the recalcitrant wastewater. It is difficult to treat by conventional wastewater treatment techniques. This study was carried out to evaluate the feasibility of zeolite ion exchange and gamma-ray irradiation treatment of livestock wastewater. The removal efficiencies of $SCOD_{Cr}$ and $NH_3-N$ were significantly enhanced by gamma-ray irradiation after zeolite ion exchange as a pre-treatment. However, the effects of zeolite particle size on the $SCOD_{Cr}$ and $NH_3-N$ removal efficiencies were insignificant. These results indicate that the combined process of zeolite ion exchange and gamma-ray irradiation has potential for the treatment of livestock wastewater.

Optimum Configuration Method and Livestock Wastewater Loding for Treating Livestock Wastewater in Constructed Wetlands by Natural Purification Method (자연정화공법에 의한 인공습지 축산폐수처리 시스템의 최적 조합방법 및 부하량)

  • Park, Jong-Hwan;Seo, Dong-Cheol;Kim, Ah-Reum;Kim, Sung-Hun;Lee, Seong-Tae;Jeong, Tae-Uk;Choi, Jeong-Ho;Kim, Hyun-Ook;Cho, Ju-Sik;Heo, Jong-Soo
    • Korean Journal of Soil Science and Fertilizer
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    • v.44 no.2
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    • pp.278-284
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    • 2011
  • To obtain optimum configuration method and livestock wastewater loading in small-scale livestock wastewater apparatus by natural purification method for treating livestock wastewater, the small-scale livestock wastewater apparatuses were constructed with 9 kinds of combined systems such as aerobic bed (ae)-anaerobic bed (an), ae-ae, ae-anoxic bed (ox), an-an, an-ae, an-ox, ox-ae, ox-an and ox-ox livestock wastewater treatment apparatuses. Under different configuration methods, the removal rate of COD in Ae-Ae and Ae-An livestock wastewater treatment apparatus was higher than that in other configuration methods. The removal rate of T-N in Ae-An livestock wastewater treatment apparatus was higher than that in other configuration methods. Removal rates of SS and T-P were not different regardless of configureation methods in small-scale livestock wastewater treatment apparatus. Under different livestock wastewater loading, the removal rates of pollutants were higher in the order of $50L\;m^{-2}\;day^{-1}{\fallingdotseq}100L\;m^{-2}\;day^{-1}\;>\;200L\;m^{-2}\;day^{-1}$. Therefore, optimum configuration method was Ae-An livestock wastewater treatment apparatus, and optimum livestock wastewater loding was $100L\;m^{-2}\;day^{-1}$ in small-scale livestock wastewater treatment apparatus.

A Study on the Effects of Livestock Wastewater on Stream Pollution(with Bacteriological Examination) (축산폐수가 하천오염에 미치는 영향에 관한 연구 (하) -세균학적 조사를 중심으로-)

  • Ryu J. K.;Lee H. S.;Lee W. C.;Kim T. J.;Lee T. J.
    • Journal of the korean veterinary medical association
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    • v.22 no.4
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    • pp.238-245
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    • 1986
  • To evaluate effects of livestock wastewater on stream pollution, the survey on the environmental sanitation, hydrology, water quality, Pollutant loads and bacterial indicators in a stream receiving livestock wastewater discharged from Chun Sung livestock

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