推估自然循環水處理方式之設計參數研究

Study on the design parameters of natural recycle treatment system

林修德(Hsiu-Te Lin)

指導教授 ： ARRAY(0xc2fb59c)

中原大學/工學院/土木工程研究所/碩士(2009年)

https://doi.org/10.6840/cycu200901174

摘要

I
本研究採用「自然循環水處理方式」作為生活污水淨化方法，於農業工程研究中心
為實驗地點，並分析出流水之水質、水量及設備操作維護費用。再生水實驗槽設計佔地
約8 m2，容積為4.70 m3，設計處理水量為10 m3/day，設計水力停留時間為10.2 hr。本
處理設備經三年測試共119 筆數據，其水質處理效果良好；處理後水質SS 平均可降至
10 mg/L 以下，BOD 平均可降到5 mg/ L 以下，NH4
+-N 平均可降至1 mg/L 以下，可作
進一步探討水處理系統各槽之功能，降解實驗結果顯示，第一槽之主要功能為去除
水中懸浮固體物與水中既有之硝態氮(NOx)，第二槽之主要功能為去除水中有機物質，
第三槽之功能為吸附色度與臭味物質。本系統主要進行生物反應之槽體為第二槽；根據
本研究實驗結果顯示去除NH4
+-N 及BOD 之設計參數組分別為(0.6079, 0.9027)、(0.5122,
實驗槽連續操作四個月後須進行一次反沖洗，本研究以反沖洗之最終污泥濃度判斷
反沖洗效果。水沖洗其最終洗出污泥濃度為4 種方式中最高，效果最差；最終洗出污泥
濃度最低者為綜合批次沖洗，使用沖洗水量亦為4 種方式中最低者，故反沖洗建議以氣
洗5 分鐘、氣水同步沖洗5 分鐘與水沖洗5 分鐘之綜合批次方式進行反冲洗。

關鍵字

污水處理 ； 設計參數 ； 再生水

並列摘要

The study used the facilities of “Natural Recycle Treatment System” to do reclaimed
water from sewage. The experiment place locates in the Agricultural Engineering Research
Center (AERC). The water quality, water quantity, and operating cost were analyzed from the
facilities. The tank for “Natural Recycle Treatment System” occupies the land area of 8 m2,
and has the volume of 4.70 m3, and the capacity treatment quantity of 10 m3 per day, and the
design hydraulic retention time (HRT) of 10.2 hr. This system had been operated for 3 years
to treat 119 data, and the water quality after treatment was good. The SS average can be
reduced below 10 mg/L, the BOD below 5 mg/L, the NH4
+-N below 1 mg/L. The system can
solve the environment problem of sewage pollution.
The functions for each subtank of this treatment system were studied further. In decay
test showed that the main function in the first subtank is to remove the SS, NOx from the
sewage; the main function in the second subtank is to remove the organic matter from the
sewage; the main function of the third subtank is to adsorb apparent color and odour. The
primary biotechnology reaction in this system is in the second subtank. The results showed
that the removed design parameter groups for the NH4
+-N and BOD are (0.6079, 0.9027) and
(0.5122, 1.1697) respectively.
The system needed to be backwashed after completed processing for four months in
succession. In this research, the final sludge concentration was used to infer the effect of the
backwash. Water-backwash had the highest final sludge concentration among the 4 studied
types, and this was the worst type. The lowest of the final sludge concentration was in the
synthetic batch backwash type which used the least water among the 4 types. The study
suggested that the synthetic batch backwash type of 5 minutes air-backwash, 5 minutes
air-water-backwash, and 5 minutes water-backwash in turn could be used as the backwash for
the system.

並列關鍵字

Reclaimed Water ； Sewage Treatment. ； Design Parameter

參考文獻

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農委會，2006。

農委會，2007。

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