國外澱粉廢水處理
A. 澱粉廠的污水怎樣處理
目前,國內抄外經常採用的澱粉廢水處理工藝有如下幾種。
1.
厭氧-好氧串聯工藝 厭氧部分一般採用UASB、厭氧濾池、厭氧塘、縱向折流套筒式厭氧污泥床(VBASB)處理工藝,好氧部分可採用生物接觸氧化、循環式活性污泥法等工藝,厭氧前面採用調節池預曝氣、沉澱等預處理,好氧...
2.
兩段好氧串聯工藝 該工藝可為生物接觸氧化與氧化塘串聯,也可採用酵母菌-焦炭固定床生物膜兩段好氣處理工藝。
3.
化學絮凝-活性炭吸附
B. 澱粉廠的廢水怎樣處理
目前,國內外經常採用的澱粉廢水處理工藝有如下幾種。
(1)厭氧-好氧串聯工內藝
厭氧部分一般容採用UASB、厭氧濾池、厭氧塘、縱向折流套筒式厭氧污泥床(VBASB)處理工藝,好氧部分可採用生物接觸氧化、循環式活性污泥法等工藝,厭氧前面採用調節池預曝氣、沉澱等預處理,好氧後面一般接氣浮、吸附、過濾等後處理,以保證出水達標。
(2)兩段好氧串聯工藝
該工藝可為生物接觸氧化與氧化塘串聯,也可採用酵母菌-焦炭固定床生物膜兩段好氣處理工藝。
(3)化學絮凝-活性炭吸附
C. 澱粉的廢水怎麼處理好呢
方法有很多,我這邊用的是「CLEAR NITE 污水處理劑」,網路搜下就能找到。
(1)沉澱分離法
澱粉不溶於冷水,可直接通過物理沉澱使廢水中懸浮物沉澱下來,一般使用沉澱池或沉澱塘。澱粉廢水含有蛋白質、澱粉,糖類及懸浮物,屬高分散系的親水膠體,這種膠體一般比較穩定,當池中產生厭氧反應時,生成的有機酸使廢水pH值下降,處於膠體狀態的蛋白質,將形成絮凝體而沉澱,能夠提髙分離效果。
沉澱池(塘)HRT約2~7d,每噸原料需要設沉澱池(塘)容積1.5~1.6m3。沉澱池(塘)的凈化效果,SS去除率一般在70%左右,效果好的可達90%,BOD5的去除率可達20%~30%。
(2)化學絮凝法
直接採用自然沉澱,處理時間長,BOD5的去除率低,如果加入葯劑,採用化學混凝法,破壞膠體的穩定作用,使分散狀態的有機物脫穩、凝聚,形成聚集狀態的粗顆粒物質從水中分離出來。混凝沉澱法比物理沉澱法去除效果好,處理時間短。通過混凝可以除去分子量較大的有機物,而分子量較小的有機物可通過活性炭吸附法除去。
(3)生物處理法
澱粉生產廢水屬於髙濃度有機廢水,不含有毒物,可生化性好,因此,國內外常用的澱粉廢水處理方法是生化法,包括活性污泥法、厭氧生物法、生物膜法、生物穩定塘等。由於澱粉廢水有機物含量高,採用好氧生物法處理能耗大,處理費用高,而厭氧生物法無需供氧,處理費用低,應用廣泛。
D. 急求一篇關於澱粉廢水處理的英文文獻,最好是木薯澱粉廢水的
給你個abstract和鏈接。如果是寫論文,可引用,別抄襲
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V24-4KWK0YJ-1&_user=10&_coverDate=05%2F31%2F2007&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1639810973&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=&searchtype=a
Anaerobic treatment of cassava starch extraction wastewater using a horizontal flow filter with bamboo as support
X. Colina, b, J.-L. Farinetb, O. Rojasa and D. Alazarda, c, ,
aUniversity of Valle, Chemical and Biological Processes Department, Environmental Biotechnology Laboratory, AA 25360, Cali, Colombia
bCIRAD - CA, BP 5045 34032 Montpellier Cedex 01, France
cIRD, AA 32417, Cali, Colombia
Received 12 June 2004; revised 9 June 2006; accepted 10 June 2006. Available online 14 September 2006.
Abstract
Small-scale sour starch agroinstry in Colombia suffer from absence of water treatment. Although starch processing plants proce diluted wastewater, it is a source of pollution and cause environmental problems to the nearby rural population. A laboratory scale anaerobic horizontal flow filter packed with bamboo pieces was evaluated for the treatment of cassava starch extraction wastewater. The wastewater used in the experimentation was the draining water of the starch sedimentation basin. The reactor was operated for 6 months. It was inoculated with a semi-granular sludge from an anaerobic UASB reactor of a slaughterhouse. Maximum organic loading rate (OLR) applied was 11.8 g COD/L d without dilution of the wastewater. At steady state and maximum OLR applied, 87% of the COD was removed and a gas proctivity of 3.7 L/L d was achieved. The average biogas yield was 0.36 L/g COD removed. Methane content in the biogas was in the range of 69–81%. The total suspended solids (TSS) removed were 67%. The relative high lactic acid content did not negatively influence the performance of the reactor. No perturbation e to cyanide (3–5 mg/L) was observed ring the reactor operation. The results obtained indicated that the anaerobic horizontal flow filter could be used efficiently for the treatment of wastewater from Colombian starch processing small-scale agroinstry.
Keywords: Cassava wastewater; Anaerobic digestion; Horizontal flow filter
Article Outline
1. Introction
2. Methods
2.1. Bamboo filter and operating conditions
2.2. Wastewater
2.3. Inoculum material
2.4. Technical analysis
2.5. Statistical analysis
3. Results and discussion
3.1. Characteristics of the wastewater
3.2. Hydrodynamic study of the horizontal flow filter reactor
3.3. Performance of the reactor
4. Conclusions
Acknowledgements
References
E. 馬鈴薯澱粉廢水如何處理
澱粉生產過程所排放的廢水中含有大量有機污染物,馬鈴薯澱粉廢水的COD值通常為內1000~30000mg/L。由於馬容鈴薯澱粉廢水屬於高濃度有機廢水,在實際工程中其處理方法主要以生化法為主。試驗認為Fenton試劑氧化可作為澱粉廢水的預處理方法。高濃度的有機澱粉廢水,通過採用物化絮凝和吸附柱吸附處理後,廢水COD去除率為54%~65%。採用PAC和PAM
混凝處理馬鈴薯澱粉廢水,廢水的COD去除率達58.14%,SS去除率達到91.11%。採用混凝沉澱-泡沫分離-吸附工藝處理馬鈴薯澱粉廢水,結果表明,採用該法處理後,澱粉廢水的總COD去除率達到80.1%,處理效果較好。
F. 澱粉提取後的廢水如何處理(急)
可以灌入沼氣池中,環保又節能還能產生清潔能源甲烷
G. 澱粉製品廢水怎麼處理
處理方法比較簡單一般採用活性污泥法直接曝氣。效果還行連雲港有一家公司就是採用此方法。