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RISS 인기검색어
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- 저자 : 송수욱(Soo-Uook Song) (검색결과 3 건)
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정호진(Ho Jin Chung),송수욱(Soo Uook Song) 한국수처리학회 2000 한국수처리학회지 Vol.8 No.1
This study analyses the characteristic properties which affect flocculation by measurement of residual turbidity using Jar-tester with industrial waste water which includes various hazardous materials. The followings are the optimum dosage of coagulant used: 299.7㎎/ℓ for aluminium sulphate, 64.9㎎/ℓ for ferric chloride, 25㎎/ℓ for PAC(Poly Aluminium Chloride) and 20㎎/ℓ for PAX(Poly Aluminium Chloride Silicate). In the case of the effect of each coagulant depending on pH, aluminium sulphate was the most effective at the alkali zone (i.e. pH 9∼12), ferric chloride was the neutral zone (i.e. pH 7∼9). PAC and PAX were less affected by pH, but well flocculated from the neutral zone (i.e. pH 6). The effect of water temperature has also been studied for the flocculation process. The difference of water temperature strongly affects on the flocculation process and the optimum temperature was normal temperature (20℃) for flocculation process. The structural properties of flocs was analysed by the observation of residual turbidity, and the volume and shape of the produced flocs. The floc structures of ferric chloride and PAC were comparatively denser and stronger than those of aluminium sulphate and PAX. The effect of flocculation of PAC and PAX was better than that of aluminium sulphate and ferric chloride. All these results could be applicable for basic reference to develop a new flocculation technique where the efficiency of flocculation has improved.
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김수원,송수욱 계명대학교 산업기술연구소 1998 産業技術硏究所 論文報告集 Vol.21 No.1
Municipal waterworks management has been done by developing only new water source to meet water demand, Recently it becomes to be opaqued to supply sufficient water according to demand because of several unexpected circumstances such as frequent drought by odd weather due to environmental pollution, limited water resources and dam construction site and NIMBY. Therefore, the purpose of this study is to develop a practical model for municipal waterworks management with the consideration of water demand management (demand restriction). The summary of the study is that this model consists of important demand management measures such as conservation education program, economic pricing policy, water reuse system, prevention of leakage and installation of water-efficient plumbing fixtures. And total conservation rate of five demand management measures was 36.83% of total demand and the conservation rate of economic pricing policy was the highest among five measures resulting in 12.63%, while the minimum conservation rate was water reuse system resulting in 2.60%.
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