本文選題：棘白菌素　切入點(diǎn)：抗生素廢水　出處：《華東理工大學(xué)》2017年碩士論文

【摘要】：抗生素發(fā)酵廢水具有COD高、色度大、抗生素殘留高以及無(wú)機(jī)鹽含量高的特點(diǎn),屬于難生物降解廢水。對(duì)于棘白菌素類(lèi)抗生素發(fā)酵廢水的處理,目前還沒(méi)有切之可行的高效處理工藝。本研究中采用厭氧生物法處理該廢水,考察厭氧生物處理的最大污泥負(fù)荷以及堿度對(duì)厭氧處理效果的影響。對(duì)于厭氧間歇運(yùn)行,還研究了時(shí)間與厭氧進(jìn)程的關(guān)系,以及系統(tǒng)堿度對(duì)出水VFA分布變化規(guī)律的影響。對(duì)于廢水色度的處理采用UV_(185nm)聯(lián)合H_2O_2氧化法,考察處理該廢水的最佳處理時(shí)間、pH、H_2O_2投加量以及探討該廢水的脫色機(jī)理。在本試驗(yàn)中,厭氧間歇運(yùn)行批處理反應(yīng)器的最大污泥負(fù)荷為0.854 kgCOD/(kgVSS·d),COD去除率達(dá)到84%以上。在進(jìn)水COD為9500mg/L,總堿度為2000mg/L時(shí),24h出水COD去除率為90.5%。UASB反應(yīng)器的最大污泥負(fù)荷為0.413kgCOD/(kgVSS·d),當(dāng)進(jìn)水 COD 為 10000mg/L,HRT 為 16h 時(shí),COD 去除率達(dá)到81%以上。當(dāng)污泥負(fù)荷為 0.305COD/(kgVSS·d),進(jìn)水 COD 為 10000mg/L,HRT 為 24h時(shí),COD去除率達(dá)到92%以上。UV_(185nm)聯(lián)合H_2O_2能夠較好的實(shí)現(xiàn)棘白菌素類(lèi)抗生素發(fā)酵廢水的強(qiáng)化脫色處理,氧化效果明顯優(yōu)于UV_(185nm)單獨(dú)光氧化系統(tǒng),且H_2O_2的投加能夠明顯增強(qiáng)UV_(185nm)光氧化系統(tǒng)的脫色效果。在pH為2.5、照射時(shí)間為60min、H_2O_2投加量為5g/L、反應(yīng)溫度為室溫條件下,UV_(185nm)聯(lián)合H_2O_2氧化處理出水色度和COD去除率分別高達(dá)96.4%和46.9%。UV_(185nm)聯(lián)合H_2O_2氧化系統(tǒng)對(duì)色度的去除依靠氧化過(guò)程中產(chǎn)生的沉積物實(shí)現(xiàn)。
[Abstract]:Antibiotic fermentation wastewater has the characteristics of high COD, high chroma, high antibiotic residue and high inorganic salt content, so it is difficult to biodegrade wastewater.At present, there is no feasible and efficient treatment process for the fermentation wastewater of acanthosin antibiotics.In this study, the anaerobic biological process was used to treat the wastewater. The maximum sludge load and the effect of alkalinity on the anaerobic treatment were investigated.For anaerobic intermittent operation, the relationship between time and anaerobic process, and the effect of system alkalinity on VFA distribution of effluent were also studied.For the treatment of wastewater chromaticity, H_2O_2 oxidation method was used to investigate the optimal treatment time of the wastewater and the dosage of H _ 2O _ 2 and the mechanism of decolorization of the wastewater.In this experiment, the maximum sludge load of anaerobic batch reactor is 0.854 kgCOD/(kgVSS / d and the removal rate is over 84%.When the influent COD is 9500 mg / L and the total basicity is 2000mg/L, the removal rate of COD in effluent is the maximum sludge load of 90.5%.UASB reactor for 24 hours. When the influent COD is 10 000 mg / L, HRT is 16 h, the removal rate of COD is over 81%.When the sludge loading was 0.305COD/(kgVSS DU and the influent COD was 10 000 mg / L HRT for 24 h, the removal rate of COD was more than 92%. UVV + 185 nm) combined with H_2O_2 could better realize the enhanced decolorization treatment of acanthoctonin antibiotic fermentation wastewater, and the oxidation effect was obviously superior to that of UVTAN alone photooxidation system.The addition of H_2O_2 can obviously enhance the decolorization effect of the photooxidation system.When pH is 2.5, irradiation time is 60 min, the dosage of H _ 2O _ 2 is 5 g / L, reaction temperature is room temperature, the chrominance and COD removal rate of the effluent treated by H_2O_2 oxidation are as high as 96.4% and 46.9% and 46.9% respectively. The removal of chroma by H_2O_2 system depends on oxidation process.The birth of sediment is realized.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：X703

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