- 低強(qiáng)度超聲波處理對(duì)剩余污泥的影響
- Effects of Low- Intensity Ultrasound Treatment on Excess Sludge
- 丁文川 龍騰銳 許龍 李理 連河川
- 土木與環(huán)境工程學(xué)報(bào)（中英文） 2006年28卷第3期 頁(yè)碼：74-77
- DOI：10.11835/j.issn.1674-4764.2006.03.020
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紙質(zhì)出版日期：2006
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摘要
試驗(yàn)測(cè)定了0~5 m in、0~30 m in兩個(gè)時(shí)間序列,0.03 W/mL、0.05 W/mL和0.1 W/mL三個(gè)能量水平超聲波作用對(duì)剩余污泥的攝氧速率(OUR)、溶解性COD(SCOD)、溶解性總氮(TN)和總磷(TP)的變化。結(jié)果表明,低強(qiáng)度超聲波對(duì)污泥作用分為兩個(gè)階段:第一個(gè)階段發(fā)生在0~4 m in,主要是作用在污泥絮體層面,表現(xiàn)為污泥絮體中SCOD、TN和TP溶出;第二個(gè)階段對(duì)污泥生物體產(chǎn)生影響,微生物活性加強(qiáng),OUR、TN和TP都有較大增長(zhǎng)。
Abstract
In this study the influence of the low-intensity ultrasound treatment on excess sludge has been observed.The oxygen uptake rate(OUR),soluble chemical oxygen demand(SCOD),soluble total nitrogen(TN) and soluble total phosphorus(TP) were examined for three power levels of 0.03 W/mL, 0.05 W/mL and 0.1 W/mL as well as two time series of 0~5 min and 0~30 min.It showed that there were two stages of ultrasonic treatment: the first stage took place within the flocs in four minutes,in which SCOD,TN,TP were dissolved from flocs.In the second stage,the microbial activities have been strengthened,as well as OUR,TN,TP have increased greatly.
