本文選題：重氮廢水 + 可生化性　； 參考：《大連海事大學(xué)》2015年碩士論文

【摘要】：隨著工業(yè)生產(chǎn)的飛速發(fā)展,高濃度化工廢水的污染日益嚴(yán)重。高濃度化工廢水的性質(zhì)和來源不同,治理較為困難,處理成本高昂。如何有效地治理高濃度廢水已成為現(xiàn)階段國際環(huán)境保護(hù)技術(shù)領(lǐng)域亟待解決的一個難題。本課題主要對某化工企業(yè)生產(chǎn)過程中產(chǎn)生的重氮廢水進(jìn)行了B/C可生化性評價。并通過與其它生產(chǎn)廢水配比及通過微電解法提升廢水的可生化性,評定其對重氮廢水B/C提升的貢獻(xiàn)值。通過培養(yǎng)馴化微生物適宜菌種的方式,及模擬生化系統(tǒng)反應(yīng)對重氮廢水展開實驗。分析生化法處理重氮廢水的可行性,評定某化工企業(yè)產(chǎn)生的重氮廢水通過生化法處理的能力。小試及現(xiàn)場實驗分析表明重氮廢水不具有可生化性；通過與企業(yè)普通生產(chǎn)廢水配比,混合、均質(zhì)后可以有效提升重氮廢水的可生化性；當(dāng)重氮廢水與生產(chǎn)廢水4：300比例混合,B/C值可從0.22提升至0.30,達(dá)到可以生化處理的臨界值。微電解反應(yīng)對重氮廢水可生化性的提高同樣有效,可將重氮廢水與生產(chǎn)廢水比例為8：300的混合廢水B/C值可提升至可以生化處理的效果。經(jīng)現(xiàn)場實際處理驗證,企業(yè)重氮廢水與企業(yè)其他廢水混合均質(zhì)并經(jīng)微電解處理后,可利用生化法進(jìn)行有效處理,日處理廢水量可達(dá)5m3。處理后出水COD為96mg/L、NH3-N為22 mg/L、Cl-為1386mg/L,各項指標(biāo)均達(dá)到出水水質(zhì)要求標(biāo)準(zhǔn)。研究表明,重氮廢水與其它生產(chǎn)廢水混合并利用微電解反應(yīng)進(jìn)行預(yù)處理,后續(xù)采用生化法對該重氮廢水進(jìn)行處理的工藝技術(shù)是的可行的。
[Abstract]:With the rapid development of industrial production, the pollution of high concentration chemical wastewater is becoming more and more serious. The nature and source of high concentration chemical wastewater are different, it is difficult to treat chemical wastewater, and the cost of treatment is high. How to effectively treat high concentration wastewater has become a difficult problem to be solved in the field of international environmental protection technology. In this paper, the biodegradability of diazo wastewater produced in a chemical enterprise was evaluated. The biodegradability of wastewater was improved by the ratio of wastewater to other wastewater and the biodegradability of wastewater was improved by microelectrolysis to evaluate its contribution to the improvement of B / C ratio of diazo wastewater. Experiments were carried out on diazo wastewater by means of culture and acclimation of microorganisms and simulation of biochemical system reaction. The feasibility of treating diazo wastewater by biochemical method was analyzed and the capacity of biazo wastewater treated by biochemical method was evaluated. Small scale test and field experiment analysis show that diazo wastewater is not biodegradable and can effectively improve the biodegradability of diazo wastewater by mixing and mixing with common production wastewater. When the ratio of diazo wastewater and production wastewater is 4: 300, the B / P C value can be raised from 0.22 to 0.30, which can reach the critical value of biochemical treatment. The microelectrolysis reaction is also effective to improve the biodegradability of diazo wastewater, and the B / C value of the mixed wastewater with the ratio of 8: 300 to the production wastewater can be raised to the effect of biochemical treatment. It has been proved by the field treatment that the diazo wastewater and other wastewater of the enterprise are mixed and homogenized and treated by micro-electrolysis, and the wastewater can be effectively treated by biochemical method, and the amount of waste water can reach 5m3 per day. The COD of treated effluent was 96 mg / L ~ (-1) NH _ 3-N = 22 mg / L ~ (-1) ~ (13 86) mg 路L ~ (-1), and each index reached the standard of effluent water quality. The results show that it is feasible to mix diazo wastewater with other production wastewater and pretreat it by microelectrolysis reaction, and then to treat the diazo wastewater by biochemical method.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X78

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