紙廠用水密閉化之研究

Study on a Closed Water System at a Paper Mill

邱俊雄(Chun-Hsiung Chiou) ； 張明基(Ming-Je Chang)

《台灣林業科學》 12卷2期 (1997/06) Pp. 229-233

https://doi.org/10.7075/TJFS.199706.0229

摘要

紙廠用水密閉化，可以有效利用水於造紙並可降低對地下水之依賴及減少廢水量；本研究以實驗室製漿造紙一貫作業測試結果顯示，用水密閉化重覆用水，計可節省用水達54.5%。一般用水密閉化系統包括幫浦、槽及水處理系統。紙廠用水密閉化、合理化、省水其具体方法是把噴嘴間距由50 mm加大為150 mm，噴水管由9支減為5支、噴水壓力由20減為10 kg/平方公分並實施循環用水系統，回收水經加藥沉澱處理後懸浮固體物可減低至45 ppm，紙廠用水密閉化運轉成功後，計可節省用水55%，日產400噸紙板廠每日節省可達NTD37,930元。

關鍵字

廢水 ； 用水密閉 ； 白水

並列摘要

Creating a closed water system at a paper mill could improve the efficiency of water use during manufacturing, reduce the mill's dependence on ground water, and eliminate discharge waste water. From integrated papermaking in the laboratory, tests showed that instituting a closed loop system could save 54.5% water. A water recycling system consisting of pumps, tank and treatment system were designed. In general, the paperboard mill used some practical methods for saving water; for example, enlarging the nozzle distance from 50 to 150 cm, decreasing the number of nozzles form 9 to 5, and reducing the water pressure from 20 to 10 kg/cm^2 during operation. Treated white water containing 45 ppm. of suspended solids was recycled. Finally, in a closed white water system, 55% of water consumption is saved. A successful run using a closed water system producing 400 tons/day paperboard could produce savings of NTD37,930 per day.

並列關鍵字

waste water ； closed system ； white water