도시폐기물 매입장에서의 환경오염 조사분석

김수생(Soo Saeng Kim),성낙창(Nak Chang Sung) 大韓環境工學會 1983 대한환경공학회지 Vol.5 No.2

활성슬럿지공법에 의한 쓰레기 침출수 , 분뇨 및 하수의 혼합처리에 관한 연구

김수생,박승조,성낙창,박현건 ( Soo Saeng Kim,Seung Cho Park,Nak Chang Sung,Hyun Geoun Park ) 한국폐기물자원순환학회(구 한국폐기물학회) 1991 한국폐기물자원순환학회지 Vol.8 No.1

원보 : 쓰레기 매립장에서 유출오염 조사 및 처리실험

김수생,박승조,성낙창 ( Soo Saeng Kim,Seung Cho Park,Nak Chang Sung ) 한국폐기물자원순환학회 1984 한국폐기물자원순환학회지 Vol.1 No.1

지렁이를 이용(利用)한 피혁(皮革) 슬러지의 퇴비화(堆肥化)에 관(關)한 연구(硏究)(I)

손희정,김형석,송영채,성낙창,김수생,Son, Hee-Jeong,Kim, Hyeong-Seok,Song, Young-Chae,Sung, Nak-Chang,Kim, Soo-Saeng 유기성자원학회 1996 유기물자원화 Vol.4 No.2

본 연구에서는 피혁슬러지의 부숙기간별 이화학적 변화를 측정하고 이를 근거로 지렁이의 생존율, 증체량, 부화율 등을 조사함으로서 지렁이를 이용한 안정화 및 처리, 처분 가능성을 평가하였다. 지렁이의 급이 조건에 적합한 피혁슬러지의 부숙기간은 산화환원전위(Eh), 알카리도에 대하여 각각 30일, 35일로 평가되었으며, 부숙기간동안 피혁슬러지의 pH 역시 초기 7.8에서 지렁이의 생육에 적합한 중성영역으로 점차 변화하는 경향을 보였다. 50일 부숙시킨 피혁슬러지의 이화학적 특성은 pH는 7.1, Eh는 85mV, 알카리도는 450ppm $CaCO_3$로 조사되었으며, 중금속함량은 여러 기준치를 만족하는 것으로 평가되었다. 50일 부숙시킨 피혁슬러지에서 지렁이 생존율은 $20{\sim}25^{\circ}C$의 생육온도에서 75%, 증체율은 230%, 부화율은 87%의 값을 보였다. 이상의 결과로부터 피혁슬러지는 최대 50일의 부숙기간을 거칠 경우 지렁이를 이용한 퇴비화가 가능한 것으로 평가되었다. The study on the ripening of leather waste sludge was performed to vemistabilize the sludge effectively using a laboratory scale darkened wood box reactor ($10{\times}10{\times}20cm$). The acceptable feed conditions for earthworm of Eh, alkalinity were obtained in the 30th and 35th days, respectively. The value of pH was gradually decreased from 7.8 to 7.1 through the ripening time. The contents of heavy metals of the ripened sludge were estimated as lower levels compared to the other regulatory standards for compost. After the ripening time for 50days, the physico-chemical properties of the sludge were estimated as pH 7.1, water content 72%, redox potential 85mV, electrolytic conductivity $2,620{\mu}mhos/cm$ and alkalinity 450 ppm as $CaCO_3$, respectively. In the ripened sludge, survival rate of the earthworms for 50 days was about 75%, and the live weight increase rate was about 230% at the temperature range of $20{\sim}25^{\circ}C$. Moreover, hatching rate of the earthworm cocoons was about 87% and the highest value was obtained in the 20~30th days. From the above results, it was evaluated that leather waste sludge could be vermistabilized effectively by earthworms, when the sludge was ripened during 50 days.

지렁이톨 利用한 皮革 슬러지의 堆肥化에 關한 鼎究(1)

손희정(Hee-Jeong Son),김형석(Hyeong-Seok Kim),송영채(Young-Chae Song),성낙창(Nak-Chang Sung),김수샘(Soo-Saeng Kim) 유기성자원학회 1996 유기물자원화 Vol.4 No.2

본 연구에서는 피혁슬러지의 부숙기간별 이화학적 변화를 측정하고 이를 근거로 지랭이의 생존율,증체량,부화율 등을 조사함으로서 지렁이를 이용한 안정화 벚 처리,처분 가능성을 평가하였다. 지렁이의 급이조건에 적함한 피혁슬러지의 부숙기간은 산화환원전위 (Eh), 알카리도에 대하여 각각 30 일,35 일로 평가되었으며,부숙기간동안 피혁슬러지의 pH 역시 초기 7.8에서 지령야의 생육에 적합한 중성영역으로 점차 변화하는 경향을 보였다. 50 일 부숙시컨 피혁슬러지의 이화학적 특성은 pH는 7.1 , Eh는 85mV, 알카리도는 450 ppm CaC03로 조사되었으며, 중금속함량은 여러 기준치를 만족하는 것으로 평가되었다. 50 일 부숙시킨 피혁슬러지에서 지렁이 생존율은 20~250C의 생육온도에서 75%, 증체율은 230%, 부화율은 87%의 값을 보였다. 이상의 결과로부터 피혁슬러지는 최대 50 일의 부숙기간을 거철 경우 지렁이를 이용한 퇴비화가 가능한 것으로 명가되었다. The study on the ripening of leather waste sludge was performed to vemistabilize the sludge effectively using a laboratory scale darkened wood box reactor (10 x 10 X 20 cm). The acceptable feed conditions for earthworm of Eh, alkalinity were obtained in the 30th and 35th days, respectively. The value of pH was gradually decreased from 7.8 to 7.1 through the ripening time. The contents of heavy metals of the ripened sludge were estimated as lower levels compared to the other regulatory standards for compost. After the ripening time for 50days, the physico-chemical properties of the sludge were estimated as pH 7. 1, water content 72%, redox potential 85 m V, electrolytic conductivity 2, 620 μmhos/ cm and alkalinity 450 ppm as CaC03, respectively. In the ripened sludge, survival rate of the earthworms for 50 days was about 75%, and the liveweight increase rate was about 230% at the temperature range of 20-25C. Moreover, hatching rate of the earthworm cocoons was about 87% and the highest value was obtained in the 20 - 30th days. From the above results, it was evaluated that leather waste sludge could be vermistabilized effectively by earthworms, when the sludge was ripened during 50 days.

지렁이 분변토의 중금속홉착능에 관한 기초연구

손희정(Hee-Jeong Son),김형석(Hyeong-Seok Kim),송영채(Young-Chae Song),성낙창(Nak-Chang Sung),김수생(Soo-Saeng Kim) 유기성자원학회 1996 유기물자원화 Vol.4 No.2

본 연구에서는 중금속에 대한 지렁이 분변토의 홉착특성을 활성탄과 비교함으로서 중금속 함유폐수처리를 위한 경제적언 홉착제로서 활용가능성을 펑가하기 위한 연구를 수행하였다. 지렁이를 이용한 퇴비화에 사용된 슬러지는 피혁슬러지와 우분슬러지를 7:3으로 혼합하여 부숙시킨 것을 사용하였다. 분변토의 물리화학적 특성을 평가하기 위한 용출실험으로부터 분변토는 약간의 pH의 완충능력과 55.1 me/100 g의 양이옹교환능력을 가지는 것으로 평가되었다. 분변토의 중금속에 대한 홉착평형시간은 90분 이내로서 활성탄과 큰 차이가 없었으며, Pb, Cu, Cd, Cr, Zn의 제거효윷은 활성탄이 각각 98%, 93%, 94%, 89%, 82%, 분변토는 95%, 90%, 88%, 80%, 66%로 펑가되었다. 홉착제 양의 변화에 따른 홉착특성을 Freundlich 등온흡착식으로 해석한 결과 l/n값은 분변토의 경우 0.28-0.74로서 활성탄의 0.29-0.56 에 근접하는 결과를 얻을 수 있었으며, 01 결과로부터 분변토를 경제적인 중금속홉착제로 사용 가능한 것으로 평가되었다. 또한,분변토의 중금속 성분별 흡착션호성향을 활성탄과 비교 분석한 결과 분변토는 Pb>Cu>Cd>Cr>Zn의 순이었으며, 활성탄은 Pb>Cd>Cu>Cr>Zn의 순이었다. The purpose of this study is the evaluation of adsorption capacity of casts for heavy metals comparing with the activated carbon. The casts was obtained from vermicom posting of the mixed organic sludges which were generated from the treatment facilities for leather wastewater and cattle wastewater. The physico-chemical characteristics of cast was investigated. Also, the batch adsorption experiments of cast and activated carbon for heavy metals were carried out , and the results were analyzed by Freundlich isotherm. The buffering capacity to the acidic wastewater was founded in the cast, and the cation exchange capacity of cast impling adsorption capacity for soluble substances was evaluated as about 55 me/l00 g. Those were implied that the cast have a large potential as a good adsorbent for soluble pollutants in wastewater. From the results of batch experiments, the removal efficiencies of tested various heavy metals including Pb, Cu , Cd , and Cr were very high value as 89-98% for the activated car-bon, and 80 - 95% for the casts except for Zn. The adsorption equilibriums for the two materials were achieved within 90 minutes. The order of preferable metals in the adsorption was found to be Pb>Cu>Cd>Cr>Zn on the cast and to be Pb>Cd>Cu>Cr>Zn on the activated carbon, respectively. From the above results, it might be con-cluded that cast is effectively available as a good adsorbent to treating the heavy metal bearing wastewater.

폐기물 성상과 매립방식에 따른 침출수 특성

성낙창,김은호,문추연,김정권,장성호,김수생,박출재 동아대학교 환경문제연구소 1996 硏究報告 Vol.19 No.1

In this study, we can be obtained the following conclusions about the characteristics of leachate with waste compositions and landfill methods. pH shows a tendency to increase in E. landfill, because NH₃ is created by anaerobic degradation and dissolved in leachate. The concentrations of BOD and COD become different, In case of E. landfill, food of combustible is H. & S. landfill and then SS is high in concentration. According to passed time, T-N is high in concentration, but T-P shows a similar tendency. Heavy metals of leachate is lower than threshold concentrations. If leachate is treated biologically, microbes are not inibitory.

쓰레기 埋立場 浸出水 중의 重金屬 除去에 관한 實驗的 考察

金秀生,成樂昌,鄭賑化 동아대학교 환경문제연구소 1989 硏究報告 Vol.12 No.1

This study was carried out in a batch apparatus to removal Heavy Metals using zeolite (Z-Ⅰ, Z-Ⅱ) actived carbon (A-Ⅰ, A-Ⅱ) and mixed zeolite-actived carbom (ZA-Ⅰ, ZA-Ⅱ, ZA-Ⅲ) as an adsorbents. Some results obtained are summerized as followings ; 1. The best on of seven adsorbents is ZA-1 (Zeolite ; Activated carbon=1 : 1) in batch adsorption tests. 2. Equilibrium relations·between adsorbents and adsorbates was concided in Freundlich equation. (0.33≤1/n≤0.71) 3. When ZA-Ⅰ was used as adsorbents, The Removing Rate of Cr(Ⅵ), Cd(Ⅱ), Pb(Ⅱ) and Zn(Ⅱ) was 59%, 54%, 79% and 68% in 10 minutes and the adsorption equilibrium was reached in 30 minutes. 4. The optimum pH values ranged 5.0 to 7.0.

都市廢棄物 浸出水의 生分解性 實驗에 관한 硏究

金秀生,成樂昌,朴出在 동아대학교 환경문제연구소 1990 硏究報告 Vol.13 No.1

A Biodegradability test of Municipal Waste Leachate(M. W. L) was performed and results of the research are as follows : 1. Treatment of M. W. L for aeration tank with detention times of 8 to 24 hours, BOD loadings of 0.49-1.48 BOD/㎥·d and MLSS concentration of 7660∼8480㎎/ℓ gave TCODcr removal efficiency of 76∼86%, TBOD of 92∼94% and TSSre of 88∼92% The maximum removal ouured at a detention of 24 hours. 2. Metabolzm Factor(Km) was calculated to be 2.2/h4 (1.5∼3.3/hr) 3. Oxigen Requirement of about 1.41㎏·₂/㎏·BODrm was required to get BOD removal efficiency of 92% 4. Chemical treatment with Composition of sample required after biological treatment, because TCODcr removal efficiency was law.

흡착제로써 폐자원을 이용한 염색폐수의 색도제거

김은호,성낙창,김수생,김국태,이영형 동아대학교 환경문제연구소 1998 硏究報告 Vol.21 No.1

Dyeing has always had a pressing need for techniques that allow economical pretreatment for color removal in wastewater. The effectiveness of adsorption for color removal from dyeing wastwater has made it an ideal alternative to other expensive treatment options. This study deals with an investigation on four waste resources locally available in dyeing wastewater treatment for color removal. Peat, bentonite, slag and fly ash were utilized for this study and their performance evaluated against that of granular activated carbon. Color of dyeing wastewater was high removed in peat, bentonite and slag except for fly ash. In point of recycling, if waste resources substituted for a valuable adsorbent such as granular activated carbon, peat, bentonite and slag could look forward to an expected economical effect.