燒却爐 洗淨集塵機의 排出水 處理

신대윤,홍완해,김형곤 조선대학교 환경공해연구소 1999 環境公害硏究 Vol.15 No.2

This study has some useful information about washout water from the small scale incinerator, installed in Chosun university. The results are as follows; 1. The concentration of SS has 65.2㎎/ℓ after being screened by micro strainer. 2. Alum(10% as Al_(2)O_(3) : 3㎖/ℓA-601P 4㎖/ℓ was added in pH 7.5 for coagulating screened washout water. The removal rate after carrying chemical coagulation turned out to be 85.8% in SS, 45.4% in CODMn, 64.5% in BOD with concentration 9.1㎎/ℓ ,93.5㎎/ℓ and 134.8㎎/ℓ respectively. Some heavy metals were also analysed and their removal efficiency was higher than expected as below : Pb, Zn, and Fe was determined as 0.76㎎/ℓ , l.06㎎/ℓ, 2.63㎎/ℓ with removal rate of 93.7%, 86.6% and 80.6% in each item, respectively. 3. The optimum HRT for sample which is mixed with coagulated washout water and screened sewage wastewater on HBC-briquet ash complicative media was 13.4hr. Mixed sample with different rate like 1 : 1(ratio of chemically coagulated water to sewage wastewater on a half and half bases) obtained from biomembrane reactor with 13.4hr retention time, was determined value as 35㎎/ℓ (38.6% removal rate), 28.3㎎/ℓ (81.3% removal rate) and 51.7㎎/ℓ (75.7% removal rate) with respect with SS, BOD and CODMn, respectively.

딸기통조림 工業廢水의 生物學的 處理에 관한 硏究

신대윤,정연자 조선대학교 환경공해연구소 1998 環境公害硏究 Vol.14 No.-

The purpose of this study is grouping the method of canning process factory for various wastewater. The result of this study, batch anaerobic process and continuous anaerobic-aerobic contact oxidation process treated of strawberry raw material cleaning wastewater, can be summarized as follows: The pH decreased until 18hr in reaction time under volatile acid generation and reached to 7.1 sequently for high and low reaction temperature respectively Batch anaerobic process of high temperature and mesophilic temperature COD removal rate was 56-78% and SS removal rate was 19.7%. The highest removal rate was obtained with reaction time for high-temperature and mesophilic temperature. From the comparing HBC with HBC-PET bottle as a media of continuous anaerobic-aerobic contact oxidation process, COD removal rate was a little higher than BOD and SS. Continuous anaerobic-aerobic contact oxidation process preserved temperature and loading change stably and process was very efficiency, in spite of short retention.

열분해 가스화 용융시설 부산물의 재활용성에 관한 고찰

신대윤,문옥란,신찬기 조선대학교 환경공해연구소 2007 環境公害硏究 Vol.20 No.1

The incineration process has commonly used for wastes amount reduction and thermal treatments of pollutants as the technologies accumulated. It investigated the recycling characteristic of the fusion slag which is a last by-product which occurs from 3 facilities which are developed with Municipal waste heat decomposition gasification fusion facility of domestic. We investigated the surface characteristic of 3 melting facility slag with SEM. Therefore we found the surface is soft by cooling water. Also the surface is tough and has small air bubble by cooling air. Ca/Si ratio for alkalinity is high from the slag of the S type melting facility. The slag of T type contents contains much Fe. The melting slag has heavy metals whose contents are Cr 312.1㎎/㎏, Cd ND. Cu 105.9㎎/㎏ and Pb 3.0㎎/㎏. Each heavy metal reduction ratio is Cr 10.72%, Cd 100%, Cu 95.9%, Pb 99.9%. The amount of heavy metals contained fly ash is highly reduced through a heat decomposition fusion process re-in scattering. The Dioxin contents of fusion slag is as following: S type 2.92 pg-TEQ/g, T type 0.87 pg-TEQ/g and P type 0.21 pg-TEQ/g These are very low level comparing with the Dioxin standard 3ng-TEQ/G of Japan. Leaching rate is very low. This satisfies the recycling standard of Germany and the Dioxin Standard of Japan. Therefore we concluded that the possibility of secondary contamination may not happen.

침지식 한외 여과막을 이용한 무산소/혐기 교대운전형 반응조의 질소·인처리에 관한 연구

신대윤,김동임,권오상 조선대학교 환경공해연구소 2004 環境公害硏究 Vol.18 No.-

Nowadays, Water is deteriorating with several reasons such as increase of wastewater which is flowed into river and limitation of water resource. In this study, reuse water system was configurated using submerged membrane bioreactor(SMBR) system consisted of anoxic, selector, and aerobic tank with membrane to concentrate on plans for securing of water resource by reusing wastewater treatment effluen. This study was examined the feasibility of applying a Intermittently Internal Recycle Membrane Bioreactor to household wastewater treatment. The bioreactor was intermittently recycle to alternate anaerobic/anoxic condition while find was entered the early stage of anoxic period and membrane filtration occurred during aeration period. With about 5,000㎎/L of MLSS , 94.4% of TCOD_(Mn), 49.6% of T-N and 56.8% T-P, With about lO.OOO㎎/L of MLSS 94.0% of TCOD_(Mn), 51.3% T-N and 49.7% of T-P and With about lO.OOO㎎/L of MLSS (anoxic 1hr, anaerobic 2hr) 96.6% of TCOD_(Mn), 67.2% of T-N and 53.0% of T-P could be removed. Therefore, this study confirmed the possibility of the domestic water treatment using membrane bioreactor process with Intermittently internal recycle.

대기부유먼지에 대한 조대입자와 미세입자의 부하율에 관한 연구

신대윤,강공언 조선대학교 생산기술연구소 1992 生産技術硏究 Vol.14 No.2

In order to investigate the coarse and fine particle burden to ambient suspended particle at Seoul in Korea, airborne particle samples were collected by filters on nine stages Andersen Air Sampler from january 1990 to December 1990, and size distribution of the aerosols were measured. The average concentration of atmospheric particulates to be collected by Andersen Air Sampler was 127.97㎍/㎥, this was about 55% of that by High-Volume Air Sampler. Particle size distribution of atmospheric particulate was divided into two groups, coarse group was made by particles lager than 1.1-2.1㎛ .in diameter and fine groups smaller than 1.1- 2.1㎛ in diameter. About 53.93% of total ambient suspended particle measured Andersen Air Sampler during the sampling period was coarse particle. During Yellow Sand phenomenon, the concentrations of ambient suspended. particle were 2.8 times higher than the average valucs in non-Yellow Sand phenomenon. The coarse particle burden to ambient suspended particle was 61.43% in Spring with Yellow Sand phenomenon and 47.51% in Summer, 44.93% in Fall, and 48.56% in Winter without Yellow Sand phenomenon.

딸기통조림 工業廢水의 生物學的 盧理에 관한 硏究

신대윤,정연자 조선대학교 환경연구소 1998 環境硏究 Vol.14 No.1

The purpose of this study is grouping the method of canning process factory for various wastewater. The result of this study, batch anaerobic process and continuous anaerobic-aerobic contact oxidation process treated of strawberry raw material cleaning wastewater, can be summarized as follows: The pH decreased until 18hr in reaction time under volatile acid generation and reached to 7.1 sequently for high and low reaction temperature respectively Batch anaerobic process of high temperature and mesophilic temperature COD removal rate was 56∼78% and SS removal rate was 19.7%. The highest removal rate was obtained with reaction time for high-temperature and mesophilic temperature. From the comparing HBC with HBC-PET bottle as a media of continuous anaerobic-aerobic contact oxidation process, COD removal rate was a little higher than BOD and SS. Continuous anaerobic-aerobic contact oxidation process preserved temperature and loading change stably and process was efficiency, in spite of short retention.

축산페수처리를 위한 탈수기와 침전조 개발에 관한 연구

신대윤,최현규 조선대학교 환경공해연구소 1998 環境公害硏究 Vol.14 No.-

Centrifugal filter and filtration type sedimentation tank are built to investigate their capacity and the optimal condition to treat swine wastewater physical-mechamically. 1. As the result of the separation and the experiment of sludge which is over 0.2??of the diameter of the particles, in 180rpm of the rotation speed and 50 ??min of filtration velocity of centrifugal filter, 1.3-4.7kg of sludge, 60-70% of hydration rot per 1m^(3) of filtrates, was removed. 2. Removal rate of SS of filtrates through filtration type sedimentation tank was more than 90%, and BOD and COD more than 50% when filtrate had been kept for 6 months in air-tight container, it generated a little gas and little precipitation.

수생식물을 이용한 수질정화 SYSTEM 개발에 관한 연구

신대윤,홍완해,왕승호 조선대학교 환경공해연구소 1999 環境公害硏究 Vol.15 No.2

This study focused on the removal of COD, SS, T-N and T-P of home wastewater in batch and continuous culture reactors using parsley. And the amounts of nitrogen and phosphorus in the tissues of parsley were also detected. The results are as follow ; 1. Parsley has achieved 42% COD removal rate, 55% SS, 10% T-P and 41% T-N for 48 hours retention time. Residual concentration was COD 6.1㎎/ℓ, SS ll㎎/ℓ, T-P 1.112㎎/ℓ and T-N 4.9㎎/ℓ respectively. 2. Nitrogen and phosphorous content, accumulated in the tissues of parsley are 40.4% and 9.2% respectively in batch reactor with 48 hours SRT. They are presenting increasing rate 37.6% of nitrogen and 9% of phosphorous, compared with their influent sample, contending 2.8% of nitrogen and 0.19% of phosphorous. 3. Continuous reactor has achieved 42% COD removal rate, 62% SS, 10% T-N, and 46% T-P, Effluent COD concentration was 5.8㎎/ℓ, SS 8.13㎎/ℓ, T-P 0.84㎎/ℓ and T-N 4.09㎎/ℓ.

환경적·사상적 고찰을 통한 장묘제도 개선에 관한 연구

신대윤,지성남 조선대학교 환경공해연구소 2000 環境公害硏究 Vol.16 No.1

Human beings are destined to die. After death, the dead body should be taken care of through various procedures by the environments of the region, ideology, cultural custom and the dead's social standing. The cemetery systemt can be classified into two large groups. One is the Burial in Wet-Condition, there are MAE-JANG, the Burial in the earth and SU-JANG, the Burial in the sea. And the other is in Dry-Condition, there are HWA-JANG, cremation by the fire and PUNG-JANG, the dealing by the wind and CHO-JANG, the dealing by the eagle. The grave site system in our contury must be changed to collectivization of scattered grave site, limiting burial time, making the list of the graves, getting rid of neglected graves. The cremation system must be supplemented by a certain ritual to give the surviving family comfort and compensation. The facilities of a crematory must be changed into more high-qualified one to win the people's trust, The remains of the dead can be scattered, laid in a charnel house or in Napkol-t'ap, Yo˘ng-t'ap, So˘k-ch'ong. A cemetery-system-improvement-plan requires strong promotion from national leaders, active educational movement from religious leaders, an effort to change people's idea and a recognition of the problems among the policy makers.

세탁페수의 효율적 처리에 관한 연구

신대윤,김근중 조선대학교 환경공해연구소 2006 環境公害硏究 Vol.19 No.1

The Conclusion that get laundry wastewater achieving effective treatment is as following. 1. The Jar- test of coagulation process experimented as alkaline aid Ca(OH) 5OO㎎/ℓ impose and at Alum 6OO㎎/ℓ as polymer coagulant at slowly mixed after pour A 101 0.5㎎/ℓ. 2. Results of chemical treatment shown that powdered activated carbon dosage O.6㎎/ℓ economical, and quality of water was the best, The quality of water of effluent SS 9.5㎎/ℓ, COD_(Mn) 14.0㎎/ℓ, COD_(Cr) 21.3㎎/ℓ, T-N 41.4㎎/ℓ and T-P 4.65㎎/ℓ, rate of removal SS 40.6%, COD_(Mn) 44.2%, COD_(Cr) 74.6%, T-N 21.9% and T-P 73.1%. 3. Using the biofilm on biochemical treatment it is HRT 18 hours when handle concentration of treatment SS 11.2㎎/ℓ, COD_(Mn)㎎/ℓ, COD_(Cr)㎎/ℓ, T-N 30.2㎎/ℓ and T-P㎎/ℓ, rate of removal COD_(Mn) 65.1%, COD_(Cr) and T-N 61.8%. 4. Biological treatment that use biofilm and chemical treatment used powdered activated carbon appeared that quality of water of powdered activated carbon treatment is better when compare quality of water that pours and does adsorption processing that SS, COD_(Cr), and T-P, quality of water of biological treatment is better COD_(Mn) and T-N. dryer, Parametric screening studies have been conducted to study optimal dryer shape and operating condition.