本文選題：噴水織造廢水　切入點：聚丙烯酸酯漿料　出處：《東華大學》2016年碩士論文　論文類型：學位論文

【摘要】：噴水織機作為當前中國紡織業(yè)中應用最廣泛的織造設(shè)備之一,其優(yōu)點是產(chǎn)量高、質(zhì)量好、織造費用低,但是要消耗大量的新鮮水源,截至目前我國已經(jīng)擁有噴水織機35.5萬臺,年用水量達到4.5億噸。因為織造過程中會使用潤滑脂和漿料,所以導致出水的COD、SS較高,如果不能有效的對噴水織造廢水進行處理,循環(huán)利用,則會導致巨大的水環(huán)境污染和資源浪費。隨著水資源的日益緊張和各地水質(zhì)排放標準的日趨嚴格,紡織行業(yè)廢水的有效治理和回用事關(guān)企業(yè)的生存和發(fā)展。因此噴水織造廢水的處理和中水回用勢在必行。論文詳細剖析了岜山織造公司現(xiàn)有規(guī)模為3000m3/d的噴水織造廢水處理及回用工程,并對該工程案例展開了經(jīng)濟性分析;在此基礎(chǔ)上提出了該工程案例的關(guān)鍵技術(shù)瓶頸,并針對關(guān)鍵技術(shù)進行了物化法和生化法的試驗研究。(1)工程案例:采用了絮凝氣浮+深層過濾+鈉離子交換+電滲析為主體的工藝流程。主要的出水指標COD、NH4+-N、SS、油類的去除是在絮凝氣浮工段,去除率分別為70.9%、87.3%、86.7%、90.6%。硬度的降低主要是在鈉離子交換機工段,鈉離子交換機工段的進水硬度為51.2mg/L,出水硬度為5.3mg/L,該工段對硬度的去除率達到89.6%。電滲析工段進水電導率為820μs/cm,出水電導率為206μs/cm,該工段對電導率的去除率達到了74.8%�；赜盟捕刃∮�60mg/L、電導率小于500μs/cm、COD≤30mg/L,可以滿足噴水織造用水要求。(2)工程案例經(jīng)濟性分析表明:該廢水處理及回用工程日回用水量為1820m3左右,每年可以節(jié)約水費269.04萬元,財務(wù)凈現(xiàn)值為342.3萬元,財務(wù)內(nèi)部回收率為23.14%,靜態(tài)回收期為6.23年。由此可見,該中水回用工程不僅具有良好的環(huán)保效益,而且具有良好的經(jīng)濟效益。(3)聚丙烯酸酯漿料廢水的物化法和生化法的對比研究:聚丙烯酸酯漿料的有效治理已成為岜山織造公司現(xiàn)有的廢水處理及回用工程的關(guān)鍵技術(shù)之一,本論文探索了噴水織造的準備過程中產(chǎn)生的上漿廢水的處理方法,考察了絮凝法、次氯酸鈉法、厭氧生物法對漿料廢水的處理效果,相應的COD去除率分別為11.7%、10.4%、30%,顯然厭氧生物法效果更好。(4)高效厭氧反應器處理聚丙烯酸酯漿料廢水的運行研究:SSSAB反應器在HRT為3d、溫度為25℃,進水p H為7.5~8.2的條件下,兩個月后啟動完成,螺旋對稱流厭氧反應器對稀釋后漿料廢水的COD去除率達到58%,從而驗證了厭氧生物法處理漿料廢水的可行性。
[Abstract]:As one of the most widely used weaving equipments in China's textile industry, water jet loom has the advantages of high output, good quality and low weaving cost, but it consumes a large amount of fresh water. Up to now, China has 355,000 water jet looms. The annual water consumption reaches 450 million tons. Because grease and slurry are used in weaving process, CODSS in effluent is higher. If water spraying wastewater can not be treated effectively and recycled, Will lead to huge water pollution and waste of resources. As water resources become increasingly tight and local water quality standards become more stringent, The effective treatment and reuse of waste water in textile industry is of vital importance to the survival and development of enterprises. Therefore, it is imperative to treat water jet weaving wastewater and reuse reclaimed water. This paper analyzes in detail the existing water jet weaving of Bashan weaving company with a scale of 3000m / 3 / d. Wastewater treatment and reuse works, On the basis of the economic analysis of the project case, the key technical bottleneck of the project case is put forward. A case study of physicochemical method and biochemical method was carried out: the main process of flocculation and air floatation deep filtration sodium ion exchange electrodialysis was adopted. The main effluent index was CODN _ 4-NSS _ 4, oil. The removal is in the flocculating air floatation section, The removal rates were 70.9% 87.3% and 86.7%, respectively. The reduction of hardness was mainly in the sodium ion exchange machine section. The hardness of influent is 51.2 mg / L, the hardness of effluent is 5.3 mg / L, the removal rate of hardness is 89.6 渭 s / L, the conductivity of influent is 820 渭 s / cm, the conductivity of effluent is 206 渭 s / cm, the removal rate of conductivity is 74.8%. Water hardness less than 60 mg / L, conductivity less than 500 渭 s / cm ~ (-1) COD 鈮，

本文編號：1595223