WANG Jing,GAO Bin.Optimization Design and Operation of Kitchen Waste Pretreatment and Anaerobic Digestion Project[J].China Water & Wastewater,2018,34(20):42-46.
餐廚廢棄物預(yù)處理及厭氧處理工程的運(yùn)行效果及設(shè)計(jì)優(yōu)化
- Title:
- Optimization Design and Operation of Kitchen Waste Pretreatment and Anaerobic Digestion Project
- 文章編號(hào):
- 1000-4602(2018)20-0042-05
- 關(guān)鍵詞:
- 餐廚廢棄物; 設(shè)計(jì)優(yōu)化; 厭氧消化; VS轉(zhuǎn)化
- 分類號(hào):
- TU993
- 文獻(xiàn)標(biāo)志碼:
- C
- 摘要:
- 江蘇省某200 t/d的餐廚廢棄物處理工程采用自動(dòng)分選+加熱攪拌+固液分離+除雜除砂+油水分離+CSTR濕式厭氧工藝。餐廚廢棄物通過(guò)預(yù)處理后形成粗油脂、有機(jī)漿料、殘?jiān)晌锪�，粗油脂和預(yù)處理后的廢棄食用油脂一并制取生物柴油;殘?jiān)膺\(yùn)填埋處置;有機(jī)漿料進(jìn)行厭氧發(fā)酵，厭氧發(fā)酵產(chǎn)生的沼氣在廠內(nèi)凈化后部分用作鍋爐燃料，部分發(fā)電上網(wǎng)。該項(xiàng)目投產(chǎn)后1年多的實(shí)際運(yùn)行表明，運(yùn)行效果良好；預(yù)處理提油效果好、雜質(zhì)去除率高、有機(jī)質(zhì)損失率低；CSTR濕式厭氧消化運(yùn)行穩(wěn)定、固相全量厭氧時(shí)產(chǎn)沼率高、出水水質(zhì)好。但是，提油的波動(dòng)性對(duì)厭氧產(chǎn)沼有一定影響，餐廚廢棄物的品質(zhì)對(duì)預(yù)處理運(yùn)行的穩(wěn)定性影響較大，全物料厭氧時(shí)系統(tǒng)穩(wěn)定性不強(qiáng)，僅液相厭氧時(shí)系統(tǒng)穩(wěn)定性強(qiáng)，但產(chǎn)氣量下降較多。
- Abstract:
- A 200 t/d kitchen waste treatment project in Jiangsu Province adopted “automatic sorting + heating and stirring + solid liquid separation + impurity and sand removal + oil water separation + CSTR wet anaerobic” process. After the kitchen waste was pretreated, crude oil, organic slurry and residue emerge. The crude oil was used to make biodiesel together with the pretreated waste edible oil and fat; the pretreated residue was disposed by landfill; the organic slurry was treated by anaerobic fermentation. Biogas produced from anaerobic fermentation was partially used as boiler fuel after purification in the plant, and the rest part was used as power generation for the internet. The actual operation for more than one year showed that the process performed well: the pretreatment had good oil extraction effect, high impurity removal rate and low loss rate of organic matter; CSTR wet anaerobic digestion process showed stable operation performance, high production rate of biogas, and high quality of effluent water; while, it was found that the fluctuation of oil extraction had a certain impact on biogas production rate and the quality of kitchen waste had a great influence on the stability of the pretreatment. The stability of the whole material anaerobic system was not strong enough, while liquid phase anaerobic system was much more stable except the gas production decreases more.
參考文獻(xiàn)/References:
［1］朱衛(wèi)兵，金慧寧，史東曉，等. 常州市餐廚垃圾應(yīng)急預(yù)處理工程實(shí)例分析［J］. 環(huán)境衛(wèi)生工程，2013，21（6）：35-37.Zhu Weibing,Jin Huining,Shi Dongxiao,et al. Engineering case of food waste emergency pretreatment in Changzhou［J］. Environmental Sanitation Engineering,2013,21(6)：35-37(in Chinese).
［2］高樹(shù)梅，趙明星，許之揚(yáng)，等. 餐廚垃圾固渣厭氧發(fā)酵產(chǎn)甲烷潛力及Logistic動(dòng)力學(xué)研究［J］. 安全與環(huán)境學(xué)報(bào)，2015，15（1）：263-268.Gao Shumei,Zhao Mingxing,Xu Zhiyang,et al. Study on the methane potential and Logistic kinetics of the solid residual kitchen waste via the ananerobic digestion［J］. Journal of Safety and Environment,2015,15(1)：263-268(in Chinese).
［3］許之揚(yáng)，趙明星，繆恒峰，等. 氨氮質(zhì)量濃度對(duì)餐廚垃圾厭氧消化產(chǎn)沼氣的影響［J］. 食品與生物技術(shù)學(xué)報(bào)，2014，33（3）：282-287.Xu Zhiyang,Zhao Mingxing,Miao Hengfeng,et al. Analysis of ammonia inhibition on anaerobic digestion via food waste［J］. Journal of Food Science and Biotechnology,2014,33(3)：282-287(in Chinese).
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備注/Memo
作者簡(jiǎn)介：王靜（1985-），女，陜西安康人，碩士，助理工程師，水處理工藝部工程師，研究方向?yàn)槲鬯幚�、污泥處理、污水廠的優(yōu)化運(yùn)行。
E-mail:4533743@qq.com
收稿日期：2018-04-26
