[1]顏瑩瑩,孟春霖,臧星華,等.深圳市污泥深度脫水應(yīng)急工程的設(shè)計與運(yùn)行[J].中國給水排水,2022,38(4):120-124.
YANYing-ying,MENGChun-lin,ZANGXing-hua,et al.Design and Operation of the Emergency Project for Deep Dewatering of Sludge in Shenzhen[J].China Water & Wastewater,2022,38(4):120-124.
點(diǎn)擊復(fù)制
YANYing-ying,MENGChun-lin,ZANGXing-hua,et al.Design and Operation of the Emergency Project for Deep Dewatering of Sludge in Shenzhen[J].China Water & Wastewater,2022,38(4):120-124.
深圳市污泥深度脫水應(yīng)急工程的設(shè)計與運(yùn)行
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期數(shù): 2022年第4期 頁碼: 120-124 欄目: 出版日期: 2022-02-17
- Title:
- Design and Operation of the Emergency Project for Deep Dewatering of Sludge in Shenzhen
- 關(guān)鍵詞:
- 深度脫水帶式機(jī); 污泥減量; 應(yīng)急工程
摘要:- 由于本地污泥處置能力不足，目前深圳市仍有約60%的污泥外運(yùn)處置，運(yùn)輸距離遠(yuǎn)，處置價格高。2019年初，深圳福永水質(zhì)凈化廠將離心脫水后含水率80%的污泥運(yùn)送至183 km外的華潤電力海豐電廠進(jìn)行摻燒，總成本約62 352 元/d。2019年5月起，該廠污泥深度脫水應(yīng)急工程開始實施，采用能與現(xiàn)狀離心脫水系統(tǒng)相銜接的深度脫水帶式機(jī)，通過藥劑調(diào)理和機(jī)械壓榨，將污泥含水率從80%降至60%，污泥外運(yùn)量從120 t/d降至68.3 t/d，減量效果顯著。在污泥減量的同時，污泥的處理處置總成本也降至44 315 元/d，經(jīng)濟(jì)效益明顯。此外，深度脫水后的污泥從團(tuán)狀塑態(tài)變?yōu)槠瑺畎牍虘B(tài)，有利于進(jìn)行長距離運(yùn)輸和電廠協(xié)同處置，污泥熱值從-0.96 MJ/kg升至0.69 MJ/kg。該污泥深度脫水應(yīng)急工程已穩(wěn)定運(yùn)行一年多，其設(shè)計和運(yùn)行經(jīng)驗具有一定的借鑒意義。
Abstract:- Due to the lack of local sludge disposal capacity, about 60% of the sludge in Shenzhen is still exported for disposal, which means a long transportation distance and high disposal price. At the beginning of 2019, Shenzhen Fuyong WWTP transported the sludge with a water content of 80% after centrifugal dewatering to China Resources Power Haifeng Power Plant, which is 183 km away, for mixed burning with a total daily cost of about 62 352 yuan. Since May 2019, the emergency project for deep dewatering of sludge has been implemented. The deep dewatering belt dehydrator that can be connected with the current centrifugal dewatering system has been used to reduce the sludge water content from 80% to 60% and reduce the sludge transport volume from 120 t/d to 68.3 t/d through chemical conditioning and mechanical pressing with significant reduction effect. Besides, the total cost of sludge treatment and disposal has also decreased to 44 315 yuan/d, with obvious economic benefits. In addition, the appearance of the sludge after deep dewatering changes from a lumpy plastic state to a sheet?like semi?solid state, which is conducive to long?distance transportation and power plant co?processing. The calorific value of sludge increased from -0.96 MJ/kg to 0.69 MJ/kg. The emergency project of sludge deep dewatering has been running stably for over a year, whose design and operation experience can provide references.
相似文獻(xiàn)/References:
[1]羅鋒,彭進(jìn)湖,張忠祥,等.南方污水處理廠污泥厭氧發(fā)酵制取碳源及投加策略[J].中國給水排水,2022,38(3):1.
LUO Feng,PENG Jin?hu,ZHANG Zhong-xiang,et al.Preparation of Carbon Source by Anaerobic Fermentation of Sludge in Wastewater Treatment Plant in Southern China and Its Dosing Strategy[J].China Water & Wastewater,2022,38(4):1.
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