本文關(guān)鍵詞：芬頓法應(yīng)用于染料工業(yè)園區(qū)廢水深度處理的技術(shù)研究與評價　出處：《北京化工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 芬頓法 染料廢水 難降解 深度處理 經(jīng)濟評價 COD

【摘要】：染料廢水是典型的“三高一低”廢水,即“高COD、高色度,高鹽度、低B/C比”。染料工業(yè)園區(qū)的廢水經(jīng)過物化和生化等多種方法進行處理后仍不能達標排放。近年來,高級氧化法用于廢水深度處理受到人們的普遍關(guān)注,其中,芬頓法作為高級氧化法的典型代表,更是引起行業(yè)內(nèi)的廣泛研究。它的優(yōu)勢體現(xiàn)在氧化能力超強,反應(yīng)時間非常短,三價鐵離子的絮凝沉淀作用等,是深度處理難降解廢水的不二選擇。本論文針對四個染料工業(yè)園區(qū)污水處理廠的難降解廢水,利用芬頓試劑進行深度處理研究,取得下列研究成果：針對來自河北、浙江、江蘇、杭州的染料工業(yè)園區(qū)污水處理廠的二沉池出水,芬頓實驗的結(jié)果差別較大。結(jié)合單因素實驗和正交實驗結(jié)果來看,河北某染料工業(yè)園區(qū)的廢水COD從94 mg·L-1降至15.6 mg·L-1,去除率達83.46%,符合國家城鎮(zhèn)污水排放一級A標準。具體處理條件是初始pH為5,30%過氧化氫為1.41g·L-1,七水合硫酸亞鐵為3.46 g·L-1：江蘇某園區(qū)廢水可由原水370 mg·L-1降低到176mg·L-1,去除率52.43%;浙江某園區(qū)廢水可由原水的321 mg·L-1降低到117 mg·L-1,去除率63.55%；杭州某園區(qū)廢水經(jīng)過芬頓法深度處理可由原水的480 mg·L-1降低到101 mg·L-1,去除率78.96%。實驗效果存在差異的原因在于廢水來源、水質(zhì)、組分有較大的差別,造成芬頓法處理的廢水不能達標。以實驗結(jié)果、藥劑費用、污泥處理費用為指導(dǎo)因子,使用多因子加權(quán)評價法對芬頓法進行技術(shù)及經(jīng)濟評價,得出結(jié)論：河北某園區(qū)廢水最適合使用芬頓法進行深度處理,浙江某園區(qū)次之,而江蘇某園區(qū)和杭州某園區(qū)的廢水基本不適合使用芬頓法深度處理。針對污泥的產(chǎn)量問題,實驗中選取了河北某染料工業(yè)園區(qū)廢水的芬頓產(chǎn)泥量進行了計算,結(jié)果得出實際的產(chǎn)泥量在理論產(chǎn)泥量的大約2-9倍之間。處理效果最佳的情況下實際產(chǎn)泥量約為理論產(chǎn)泥的3倍。綜合實驗結(jié)果、經(jīng)濟性和污泥產(chǎn)量考慮,芬頓法用于染料工業(yè)園區(qū)廢水的深度處理效果是明顯的,充分利用了芬頓試劑的強氧化性和鐵離子的絮凝沉淀作用,然而還是不能全部達標排放,且污泥產(chǎn)量較高,總費用較高。突破該方法的經(jīng)濟性瓶頸,需從其反應(yīng)機理入手,進行深入研究。
[Abstract]:Dye wastewater is a typical "three high and one low" wastewater, namely "high COD, high chroma, high salinity, low B/C ratio wastewater. Dye industrial park by physicochemical and biochemical methods after treatment can not discharge. In recent years, advanced oxidation process for wastewater treatment has received widespread attention, people among them, Fenton as a typical representative of advanced oxidation process, is widely studied in the industry. Its advantage is reflected in the oxidation of super capacity, the reaction time is very short, ferric ion flocculation, is non degradable wastewater deep treatment of choice. This thesis focuses on the four dye industrial park sewage treatment plant wastewater, the depth of processing using the Fenton reagent, made the following research results: according to Zhejiang, from Hebei, Jiangsu, Hangzhou dye industrial park sewage treatment plant effluent two, Fenton's results are quite different. Combined with single factor experiment and the orthogonal experiment results, a dye waste water COD Hebei Industrial Park from 94 mg L-1 to 15.6 Mg - L-1, the removal rate reached 83.46%, with a grade A emission standard for urban sewage treatment is the initial condition specific countries. PH 5,30% 1.41g L-1 for hydrogen peroxide seven, vitriol is 3.46 G - L-1: a Jiangsu park wastewater can be decreased from 370 mg to 176mg L-1 water L-1, the removal rate of 52.43%; a Zhejiang park wastewater by water 321 mg L-1 reduced to 117 Mg - L-1, the removal rate of 63.55%; a Hangzhou water park after Fenton depth treatment by raw water of 480 mg - L-1 reduced to 101 Mg - L-1, the removal rate of 78.96%. water quality experimental effect differences is the source of wastewater, and components are different, resulting in Fenton treatment of wastewater can not be reached. With the experimental results, agent fees With the cost of sludge treatment, as the guiding factor, using multi factor weighted evaluation method of Fenton method for technical and economic evaluation, draw the conclusion: Hebei park wastewater is most suitable for use Fenton method for depth processing, a Zhejiang times Park, and the wastewater in a Jiangsu Park and Hangzhou park is not suitable for a basic depth processing using Fenton method aiming at the problem of sludge yield. In the experiment, selected Fenton sludge production of dye wastewater in a Hebei Industrial Park was calculated, sludge production results in about 2-9 times between the actual theory of sludge production. The good treatment effect under the condition of the actual amount of sludge production is about 3 times the theory of sludge production. According to the experimental results, the economy and sludge yield, Fenton method for advanced treatment of wastewater from Dyestuff Industry Park effect is obvious, make full use of the strong oxidation flocculation of Fenton reagent and iron ion precipitation However, it is still not able to meet all the standard emissions, and the output of sludge is higher and the total cost is higher. Breaking through the economic bottleneck of this method, we need to start with its reaction mechanism and make further research.

【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X788

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