하수슬러지와 굴껍질의 혼합첨가에 의한 산성토양 교정효과

문종익,최성문,성낙창,허목,김부길,김철,Moon, Jong-Ik,Choi, Sung-Moon,Sung, Nak-Chang,Huh, Mock,Kim, Boo-Gil,Kim, Chul 유기성자원학회 2001 유기물자원화 Vol.9 No.2

본 연구에서 밭토양은 부산시의 평균 pH인 인공 산성우(pH=5.34) 조건에서 실험되어졌다. 그리고 산성토양 중 화능을 확인하기 위해 토양산도, CEC(양이온 치환능력)와 K, Ca, Na와 같은 알칼리 금속에 대해 분석하였다. 굴껍질은 치환성 양이온을 다량 함유하고 있기 때문에 산성 토양 개선제로의 역할을 할 수 있을 것이고 하수슬러지의 토양 첨가는 슬러지 처분의 대체 방안으로 기대된다. 본 연구의 목적은 하수슬러지 및 굴껍질의 적정처리방법으로 산성토양에 주입시 그 개선효과를 검토하고자 하였다. 토양과 하수슬러지의 비율을 각각 10:0, 9:1, 8:2, 7:3으로 한 것과 토양 : 하수슬러지와 굴껍질 혼합물의 비율을 각각 9:1, 8:2, 7:3으로 한것을 대상토양에 첨가하였다. 실험 결과, 토양산도는 약간 감소하였고 CEC는 약간 증가하는 경향을 나타내었다. 알칼리 금속의 경우는 실험기간동안 지속적으로 감소되어져 토양산도, CEC와는 다른 농도경향을 나타내었다. 결과적으로 굴껍질이 혼합된 하수슬러지는 산성토양 개선제로서 역할을 할 수 있음을 확인하였다. In this study farm soil was tested under artificial acid rain(pH = 5.34), which is average pH of Pusan metropolitan area. and to find out the soil's acid neuralization capacity, soil acidity, CEC(cation exchange capacity)and akaline meatals, such as K, Ca and Na were tested. Because oyster shells(OS) had portion of alkaline metals, OS could play a role in acid soil amendment. And soil addition of sewage treatment sludge(STS) could be a alternative for disposal method. The purpose of this study is to evlauate acid soil amendment using STS and OS. In case of soil and STS, mixing ratio was10:0, 9:1, 8:2, 7:3. And STS mixed OS was also added in acid soil as same ratio as STS. Throught the experiment, soil acidity was stationary state with slight decrease, and CEC was also stationary state but with slight increase. Allkaline metals showed differences in concentration, but all of them were tend to decrease. In conclusion, STS mixed OS could play a part in amendment of acid soil.

부산시 공장지역·주거지역 하천의 수질특성분석

문종익,임영석,박광현,김석택,성낙창,박출재 동아대학교 환경문제연구소 2000 硏究報告 Vol.23 No.1

This study is carried out to investigate the water quality changes in Busan Metropolitan streams. The results are as follows. In Busan Metropolitan streams, the loading rates of contaminants are greater in industrial waste water streams than domestic waste water streams. Some sampling points show a little high loading in autumn, but this needs more investigation to make clear the causes. The level of organic contaminants(BOD_(5) and COD_(MN)) is found to be low and does not show seasonal variation in domestic waste water streams. But, the level of organic contaminants in industrial waste water streams is relatively high and seems to be seasonally variable, which is affected by other factors. The nutrient materials, such as nitrogen(as T-N, about 20mg/L) and phosphorus(as T-P, about 2.0mg/L), are abundant than Nak Dong River and the general trends of contaminants level are similar to those of organic contaminants.

슬러지 탈수개량제로서 폐굴껍질의 대체가능성에 관한 연구

문종익,정유진,성낙창,김형석,김철 대한환경공학회 1999 대한환경공학회 학술발표논문집 Vol.1999 No.8

정수슬러지와 폐굴껍질 분말의 혼합첨가에 의한 산성토양 개선에 관한 연구

문종익,정유진,성낙창 동아대학교 환경문제연구소 2001 硏究報告 Vol.24 No.2

In this study, farm soil was tested to find out acid soil amendment by adding water purification sludge(WPS) and waste oyster shell(WOS) under artificial acid rain(pH=534). which is average pH of Busan metropolitan area. Soil acidity, CEU(cation exchange capacity) and akaline meatals, such as K, Ca and Na were tested to find out the acid neutralization capacity of soil Because WOS had large portion of alkaline metals, WOS could play a role in acid soil amendment And soil addition of WPS could be an alternative for conventional disposal method. The purpose of this study is to evaluate acid soil amendment using LWS and WOS. In case of soil and WPS, mixing ratio was 10:0, 9:1, 8:2 and 7:3 And WPS mixed WOS was also added In acid soil as the same ratio as WPS. Throughout the experiment, soil acidity and CEC were stationary state with slight increase. Alkaline metals showed differences in concentration, but all of them were tend to decrease. In conclusion, WPS mixed WOS could play a part in amendment of acid soil.

분말 폐굴껍질을 이용한 정수슬러지의 탈수 개선방안

문종익,최성문,임영석,성낙창,김철,곽영규 한국환경보건학회 2001 한국환경보건학회지 Vol.27 No.2

The object of this study is to find out the characteristics of waste oyster shells and determine the proper dosage of powdered waster oyster shells as the conditioning agent for water treatment sludge dewatering process. The large amount of waste oyster shells which discharges from the oyster farming, occurs serious environmental hazards. However, oysters shell contain large amount(about 38% by weight) of alkaline minerals, such as calcium and magnesium and so on, this natural material is thought to have the petential ability as a good conditioning agent. The results of this study are as follows. The optimum condition for improvement of the water treatment sludge dewaterability is when 6 g of waste oyster shell powder added to 200ml of water treatment sludge. At optimum condition, the solid contents can reach to 31.78% and the specific resistance of conditioned sludge is 0.16x108 sec2/g. However, exceeding the of powdered waste oyster shell is needed to get the effective result. Consequently, the waste oyster shell can be a recyclable material to improve the dewaterability of water treatment sludges.

고무폐기물 소각처리에서 NO의 발생저감에 관한 연구

문종익,배병훈,임경택 대한환경공학회 1997 대한환경공학회 학술발표논문집 Vol.1997 No.12

하수슬러지와 굴껍질의 토지주입이 토양오염도에 미치는 영향

문종익(Jong Ik Moon),정유진(Yoo Jin Jung),성낙창(Nak Chang Sung) 大韓環境工學會 2002 대한환경공학회지 Vol.24 No.4

하수슬러지와 귤껍질의 혼합첨가에 의한 산성토양 교정효과

문종익(Jong-Ik Moon),최성문(Sung-Moon Choi),성늬창(Nak-Chang Sung),허목(Mock Huh),김부길(Boo-GiI Kim),김철(Chul Kim) 유기성자원학회 2001 유기물자원화 Vol.9 No.2

본 연구에서 밭토양은 부산시의 평균 pH 인 인공 산성우(pH=5 , 34) 조건에서 실험되어졌다 . 그리고 산성토양 중화능을 확인하기 위해 토양산도 CEC(양이온 치훤능력)와 K, Ca, Na와 같은 알칼리 금속에 대해 분석하였다. 굴껍질은 치환성 양이온을 다량 함유하고 있기 때문에 산성 토양 개선제로의 역할을 할 수 있을 것이고 하수슬러지의 토양 첨가는 슬러지 처분의 대체 방안으로 기대된다. 본 연구의 목적은 하수슬러지 및 굴껍질의 적정처리방법으로 산성토양에 주입시 그 개선효과를 검토하고자 하였다, 토양과 하수슬러지의 비율을 각각 10:0, 9:1, 8:2,7:3으로 한것과 토양 : 하수슬러지와 굴껍질 흔합물의 비율을 각각 9:1, 8:2, 7:3으로 한것을 대상토양에 첨가하였다. 실험 결과, 토양산도는 약간 감소하였고 CEC는 약간 증가하는 경향을 나타내었다, 알칼리 금속의 경우는 실험기간동안 지속적으로 감소되어져 토양산도 CEC와는 다른 농도경향을 나타내었다‘ 결과적으로 굴껍질이 흔합된 하수슬러지는 산성토양 개선제로서 역할을 할 수 있음을 확인하였다 In this study,farm soil was tested under artificial acid rain(pH = 5.34), which is average pH of Pusan metropolitan area. And to find out the soils acid neuralozation capacity, soil acidity, CEC(cation exchange capacity) and akalone meatals, such as , Ca and Na were tested. Because oyster shells(OS) had alrge portion of alkaline netals, OS could play a role in acid soil anendment. And soi addition fo sewage treatment sludge(STS) could be a altemative for disposal method. The purpose of this study is to evaluate acid soil amendment using STS and OS. In case of soil and STS, mixing ratio was 10:0, 9:1, 8:2 and 7:3. And STS mixed OS was also added in acid soil as same ratio as STS. Throught the experiment, soil acidity was stationary state with slight decrease, and CEC was also stationafy state but with slight increase. Alkalime metals showed differences in concentration, but all of them were tend to decrease.

폐굴껍질을 이용한 정수,하수슬러지의 탈수특성 비교분석

정병길,문종익,강동효,장성호,김형석,성낙창 한국폐기물자원순환학회 2000 한국폐기물자원순환학회 학술대회 Vol.2000 No.1

잡음이 있는 X선 프로젝션에 적합한 웨이블렛 기반 영상재구성

이남용,문종익 한국융합신호처리학회 2006 융합신호처리학회 논문지 (JISPS) Vol.15 No.1

이 논문의 목적은 X선의 감쇠를 이용한 측정에서 발생하는 여러 종류의 잡음을 효과적으로 제거하는데 적합한 영상재구성 방법을 제안하는 것이다. 구체적으로, X선의 방출기와 검출기의 필연적인 기계적 오류에 의해 발생하는 원형모양 오류와 전반적인 관측오차와 푸리에 변환기반 재구성 과정에서 나타나는 줄무늬 모양 잡음을 효과적으로 제거하기 위해 웨이블렛 방법을 제안한다. 원형모양 오류를 프로젝션에서 제거하기 위해 해당 잡음이 각도방향으로 강한 상관관계를 가지고 있음을 이용하여, 평균화된 정보에서 해당 잡음의 강도를 추정하고 이를 웨이블렛 축소법을 통해 제거하는 방법을 제안한다. 또한, 전반적인 잡음제거와 영상재구성을 위해 웨이블렛-배규렛 분해법을 제안한다. 제안된 방법은 기존의 푸리에 변환을 기반으로 하는 방법에 비해 원형모양 오류와 영상재구성에 있어서 우수한 영상을 제공함을 시뮬레이션을 통해 확인하였다. In this paper, we present an efficient image reconstruction method which is suited to remove various noise generated from measurement using X-ray attenuation. To be specific, we present a wavelet method to efficiently remove ring artifacts, which are caused by inevitable mechanical error in X-ray emitters and detectors, and streak artifacts, which are caused by general observation errors and Fourier transform-based reconstruction process. To remove ring artifacts related noise from projections, we suggest to estimate the noise intensity by using the fact that the noise related to ring artifacts has a strong correlation in the angle direction, and remove them by using wavelet shrinkage. We also suggest to use wavelet-vaguelette decomposition for general-purpose noise removal and image reconstruction. Through simulation studies, we show that the proposed method provides a better result in ring artifact removal and image reconstruction over the traditional Fourier transform-based methods.