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[1]徐志嬙,李瑤,周愛朝,等.污泥熱水解過程中磷的釋放規(guī)律與影響因素[J].中國給水排水,2018,34(21):24-30.
XU Zhi qiang,LI Yao,ZHOU Ai chao,et al.Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis[J].China Water & Wastewater,2018,34(21):24-30.點擊復(fù)制
污泥熱水解過程中磷的釋放規(guī)律與影響因素
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第34卷 期數(shù): 2018年21期 頁碼: 24-30 欄目: 論述與研究 出版日期: 2018-10-20
Title:Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis
文章編號:1000-4602(2018)21-0024-07
作者:徐志嬙1，李瑤1，周愛朝1，姚宸朕1，2，劉榮榮1(1.西安理工大學(xué)陜西省西北旱區(qū)生態(tài)水利工程重點實驗室，陜西西安710048；2.中節(jié)能 工業(yè)水務(wù)工程有限公司，陜西西安710048)
Author(s):XU Zhi qiang1,LI Yao1,ZHOU Ai chao1,YAO Chen zhen1，2,LIU Rong rong1(1. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China; 2. Energy Saving Industrial Water Engineering Co. Ltd.Xi’an 710048, China)
關(guān)鍵詞:剩余污泥; 熱水解; pH值; 磷釋放; 影響因素
Keywords:excess sludge; thermal hydrolysis; pH; phosphorus release; influencing factor
分類號:TU992
文獻標志碼:A
摘要:剩余污泥中富含磷物質(zhì)，具有較大的回收利用價值。從污泥中高效回收磷最重要的步驟是將磷盡可能地釋放到溶液中。以含固率為5%的剩余污泥（干污泥中磷占比為1.1%）為研究對象，進行了熱水解磷釋放規(guī)律研究。結(jié)果顯示：當采用低溫水解與投加酸聯(lián)合處理剩余污泥時，污泥絮體被破壞，磷的釋放量顯著增加。當溫度為75 ℃、加熱時間為1 h、pH值為3時，TP和IP的釋放量可達到最大，分別為311.9 mg/L和293.8 mg/L，是原污泥液相中TP和IP含量的7.9倍和8.4倍。將經(jīng)上述條件處理的污泥混合液在35 ℃下靜置24 h，污泥液相中NH+4-N濃度由96.0 mg/L提高到318.7 mg/L，同時伴隨著SCOD濃度的明顯減小。因此，通過低溫短時熱水解聯(lián)合酸處理可顯著提高污泥中磷和氨氮的釋放量，可為后續(xù)以鳥糞石沉淀法回收磷創(chuàng)造有利條件。
Abstract:The phosphorus (P) in excess sludge (ES) produced by the sewage treatment plant has huge recycling value. The most important step of P recovery from the ES is to release as much P as possible into the solution. In this work, the ES with a solid content of 5% was used to study P release during the thermal hydrolysis. The results showed that when the ES was treated with lowtemperature and pretreated with acid, the floc of the sludge was destroyed, and the release of P increased significantly. When the temperature was 75 ℃ for 1 h, the release of the total P (TP)and dissolving inorganic P (IP) in the liquid phase of raw sludge reached the maximum level, 311.9 mg/L and 293.8 mg/L, respectively, and was increased by 7.9 times and 8.4 times compared with raw sludge. When the sludge mixture was allowed to stand for 24 h at 35 ℃, the concentration of ammonia nitrogen (NH+4-N) increased from 96.0 mg/L to 318.7 mg/L, accompanied by a significant decrease in the concentration of soluble chemical oxygen demand (SCOD).These results demonstrated that the combination of lowtemperature and shorttime thermal and acid pretreatment could significantly increase the P and NH+4-N release in the sludge, which created favorable conditions for P recovery by struvite precipitation.
參考文獻/References:
［1］Cordell D,Drangert J O,White S. The story of phosphorus: Global food security and food for thought［J］. Global Environmental Change,2009,19(2):292-305.
［2］Rittmann B E,Mayer B,Westerhoff P,et al. Capturing the lost phosphorus［J］. Chemosphere,2011,84(6):846-853.
［3］Wu L,Zhang C,Hu H,et al. Phosphorus and shortchain fatty acids recovery from waste activated sludge by anaerobic fermentation:Effect of acid or alkali pretreatment［J］. Bioresour Technol,2017,240:192-196.
［4］Yuan Z,Pratt S,Batstone D J. Phosphorus recovery from wastewater through microbial processes［J］. Current Opinion in Biotechnology,2012,23(6):878-883.
［5］Shu L,Schneider P,Jegatheesan V,et al. An economic evaluation of phosphorus recovery as struvite from digester supernatant［J］. Bioresour Technol,2006,97(17):2211-2216.
［6］Wu Q,Bishop P L. Enhancing struvite crystallization from anaerobic supernatant［J］. Journal of Environmental Engineering & Science,2015,89(3):21-29.
［7］Cloete T E,Oosthuizen D J. The role of extracellular exopolymers in the removal of phosphorus from activated sludge［J］. Water Res,2001,35(15):3595-3598.
［8］Zou J,Li Y. Anaerobic fermentation combined with lowtemperature thermal pretreatment for phosphorusaccumulating granular sludge:Release of carbon source and phosphorus as well as hydrogen production potential［J］. Bioresour Technol,2016,218:18-26.
［9］Steckenmesser D,Vogel C,Adam C,et al. Effect of various types of thermochemical processing of sewage sludges on phosphorus speciation,solubility,and fertilization performance［J］. Waste Manage,2017,62:194-203.
［10］Val del Rio A,Morales N,Isanta E,et al. Thermal pretreatment of aerobic granular sludge:impact on anaerobic biodegradability［J］. Water Res,2011,45(18):6011-6020.
［11］薛濤,黃霞,郝王娟. 剩余污泥熱處理過程中磷、氮和有機碳的釋放特性［J］. 中國給水排水,2006,22(23):22-25. Xue Tao,Huang Xia,Hao Wangjuan. Characteristics of phosphorus,nitrogen and total organic carbon release in thermal excess sludge treatment process［J］. China Water & Wastewater,2006,22(23):22-25(in Chinese).
［12］Zhang M Y,Kuba T. Inhibitory effect of metal ions on the polyphosphate release from sewage sludge during thermal treatment［J］. Environ Technol,2014,35(9/12):1157-1162.
［13］Xu Y,Hu H,Liu J,et al. pH dependent phosphorus release from waste activated sludge:contributions of phosphorus speciation［J］. Chemical Engineering Journal,2015,267:260-265.
［14］Ruban V,LópezSánchez J F,Pardo P,et al. Harmonized protocol and certified reference material for the determination of extractable contents of phosphorus in freshwater sediments—a synthesis of recent works［J］. Fresenius Journal of Analytical Chemistry,2001,370(2/3):224-228.
［15］程振敏,魏源送,劉俊新. 酸堿預(yù)處理對常壓微波輻射剩余活性污泥磷釋放的影響［J］. 環(huán)境科學(xué),2009,30(4):1110-1114. Cheng Zhenmin,Wei Yuansong,Liu Junxin. Effect of acid and alkali on phosphorus release from sewage sludge in the microwave treatment process［J］. Environmental Science,2009,30(4):1110-1114(in Chinese).
［16］Weiler R R. Rate of loss of ammonia from water to the atmosphere［J］. Journal of the Fisheries Research Board of Canada,2011,36(6):685-689.
［17］陶飛飛,田晴,李方,等. 共存雜質(zhì)對磷酸銨鎂結(jié)晶法回收磷的影響研究［J］. 環(huán)境工程學(xué)報,2011,5(11):2437-2441. Tao Feifei,Tian Qing,Li Fang,et al. Effects of coexisting impurities on phosphorus recovery in magnesium ammonium phosphate crystallization［J］. Chinese Journal of Environmental Engineering,2011,5(11):2437-2441(in Chinese).
［18］許德超,周禮杰,尹魁浩,等. 低溫?zé)釅A破解低有機質(zhì)污泥及磷形態(tài)分析［J］. 環(huán)境工程學(xué)報,2017,11(10):5621-5629. Xu Dechao，Zhou Lijie，Yin Kuihao,et al. Disintegration and phosphorus forms of alkaline pretreatment with lowtemperature heating for loworganic sludge［J］. Chinese Journal of Environmental Engineering,2017,11(10):5621-5629(in Chinese).
相似文獻/References:
[1]張彥平,呼瑞琪,李一兵,等.高鐵酸鹽氧化剩余污泥溶胞減量研究[J].中國給水排水,2020,36(15):59.
ZHANG Yan-ping,HU Rui-qi,LI Yi-bing,et al.Lysis and Reduction of Excess Sludge by Ferrate Oxidation[J].China Water & Wastewater,2020,36(21):59.
[2]胡德秀,張聰,張艷.超聲強化污泥釋磷及MAP法磷回收優(yōu)化研究[J].中國給水排水,2020,36(15):65.
HU De-xiu,ZHANG Cong,ZHANG Yan.Phosphorus Release from Sludge Enhanced by Ultrasound and Optimization of Phosphorus Recovery by Magnesium Ammonium Phosphate Method[J].China Water & Wastewater,2020,36(21):65.
[3]晏習(xí)鵬,肖小蘭,亓金鵬,等.中試厭氧膜生物反應(yīng)器對剩余污泥的消化效果[J].中國給水排水,2020,36(19):1.
YAN Xi-peng,XIAO Xiao-lan,QI Jin-peng,et al.Digestion of Excess Sludge in a Pilot Anaerobic Membrane Bioreactor[J].China Water & Wastewater,2020,36(21):1.
[4]孫洋洋,張雨辰,徐蘇云.不同來源剩余污泥有機質(zhì)賦存特征及厭氧消化潛能[J].中國給水排水,2021,37(11):17.
SUN Yang-yang,ZHANG Yu-chen,XU Su-yun.Characteristics of Organic Matters in Excess Sewage Sludge from Different Sources and Their Anaerobic Digestion Potential[J].China Water & Wastewater,2021,37(21):17.
[5]朱趙冉,黃顯懷,唐玉朝,等.低速攪拌球磨破解剩余污泥高效釋放碳源[J].中國給水排水,2021,37(13):1.
ZHU Zhao-ran,HUANG Xian-huai,TANG Yu-chao,et al.High Efficient Release of Carbon Source from Excess Sludge Disintegrated by Low-speed Stirring and Ball-milling[J].China Water & Wastewater,2021,37(21):1.
[6]李偉,常菁,王佳偉,等.熱水解高級厭氧消化系統(tǒng)的污泥消毒、減量與能量回收[J].中國給水排水,2021,37(16):19.
LI Wei,CHANG Jing,WANG Jia-wei,et al.Sludge Disinfection, Reduction and Energy Recovery by Anaerobic Digestion with Thermal Hydrolysis Pretreatment[J].China Water & Wastewater,2021,37(21):19.
[7]趙博瑋,牛宇錕,謝飛,等.剩余污泥碳化裂解液的資源化中試研究[J].中國給水排水,2021,37(19):1.
ZHAO Bo-wei,NIU Yu-kun,XIE Fei,et al.Pilot-scale Study on Resource Recycling of Excess Sludge Carbonized Pyrolysis Liquid[J].China Water & Wastewater,2021,37(21):1.
[8]竇川川,劉玉玲,趙鵬鶴,等.堿預(yù)處理對剩余污泥DOM的溶出特征及平行因子分析[J].中國給水排水,2021,37(19):14.
DOU Chuan-chuan,LIU Yu-ling,ZHAO Peng-he,et al.Effect of Alkaline Pretreatment on DOM Dissolution Characteristics of Excess Sludge and Parallel Factor Analysis[J].China Water & Wastewater,2021,37(21):14.
[9]東東,趙珊,郭學(xué)彬,等.典型污泥高級厭氧消化工藝中惡臭物質(zhì)的分布特征[J].中國給水排水,2021,37(21):7.
DONG Dong,ZHAO Shan,GUO Xue-bin,et al.Distribution Characteristics of Odorants in Typical Sludge Advanced Anaerobic Digestion Process[J].China Water & Wastewater,2021,37(21):7.
[10]羅鋒,彭進湖,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(21):1.
備注/Memo
基金項目：陜西省教育廳重點項目（17JS103）作者簡介：徐志嬙（1969- ），女，重慶人，博士，教授，主要從事污水再生利用與水生態(tài)修復(fù)技術(shù)研究。
E-mail:595269472@qq.com
收稿日期：2018-06-05
更新日期/Last Update: 2018-11-01
[1]徐志嬙,李瑤,周愛朝,等.污泥熱水解過程中磷的釋放規(guī)律與影響因素[J].中國給水排水,2018,34(21):24-30.
XU Zhi qiang,LI Yao,ZHOU Ai chao,et al.Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis[J].China Water & Wastewater,2018,34(21):24-30.
點擊復(fù)制
污泥熱水解過程中磷的釋放規(guī)律與影響因素
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第34卷 期數(shù): 2018年21期 頁碼: 24-30 欄目: 論述與研究 出版日期: 2018-10-20
- Title:
- Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis
- 文章編號:
- 1000-4602(2018)21-0024-07
- 作者:
- 徐志嬙1，李瑤1，周愛朝1，姚宸朕1，2，劉榮榮1
- (1.西安理工大學(xué)陜西省西北旱區(qū)生態(tài)水利工程重點實驗室，陜西西安710048；2.中節(jié)能 工業(yè)水務(wù)工程有限公司，陜西西安710048)
- Author(s):
- XU Zhi qiang1,LI Yao1,ZHOU Ai chao1,YAO Chen zhen1，2,LIU Rong rong1
- (1. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China; 2. Energy Saving Industrial Water Engineering Co. Ltd.Xi’an 710048, China)
- 關(guān)鍵詞:
- 剩余污泥; 熱水解; pH值; 磷釋放; 影響因素
- Keywords:
- excess sludge; thermal hydrolysis; pH; phosphorus release; influencing factor
- 分類號:
- TU992
- 文獻標志碼:
- A
- 摘要:
- 剩余污泥中富含磷物質(zhì)，具有較大的回收利用價值。從污泥中高效回收磷最重要的步驟是將磷盡可能地釋放到溶液中。以含固率為5%的剩余污泥（干污泥中磷占比為1.1%）為研究對象，進行了熱水解磷釋放規(guī)律研究。結(jié)果顯示：當采用低溫水解與投加酸聯(lián)合處理剩余污泥時，污泥絮體被破壞，磷的釋放量顯著增加。當溫度為75 ℃、加熱時間為1 h、pH值為3時，TP和IP的釋放量可達到最大，分別為311.9 mg/L和293.8 mg/L，是原污泥液相中TP和IP含量的7.9倍和8.4倍。將經(jīng)上述條件處理的污泥混合液在35 ℃下靜置24 h，污泥液相中NH+4-N濃度由96.0 mg/L提高到318.7 mg/L，同時伴隨著SCOD濃度的明顯減小。因此，通過低溫短時熱水解聯(lián)合酸處理可顯著提高污泥中磷和氨氮的釋放量，可為后續(xù)以鳥糞石沉淀法回收磷創(chuàng)造有利條件。
- Abstract:
- The phosphorus (P) in excess sludge (ES) produced by the sewage treatment plant has huge recycling value. The most important step of P recovery from the ES is to release as much P as possible into the solution. In this work, the ES with a solid content of 5% was used to study P release during the thermal hydrolysis. The results showed that when the ES was treated with lowtemperature and pretreated with acid, the floc of the sludge was destroyed, and the release of P increased significantly. When the temperature was 75 ℃ for 1 h, the release of the total P (TP)and dissolving inorganic P (IP) in the liquid phase of raw sludge reached the maximum level, 311.9 mg/L and 293.8 mg/L, respectively, and was increased by 7.9 times and 8.4 times compared with raw sludge. When the sludge mixture was allowed to stand for 24 h at 35 ℃, the concentration of ammonia nitrogen (NH+4-N) increased from 96.0 mg/L to 318.7 mg/L, accompanied by a significant decrease in the concentration of soluble chemical oxygen demand (SCOD).These results demonstrated that the combination of lowtemperature and shorttime thermal and acid pretreatment could significantly increase the P and NH+4-N release in the sludge, which created favorable conditions for P recovery by struvite precipitation.
參考文獻/References:
［1］Cordell D,Drangert J O,White S. The story of phosphorus: Global food security and food for thought［J］. Global Environmental Change,2009,19(2):292-305.
［2］Rittmann B E,Mayer B,Westerhoff P,et al. Capturing the lost phosphorus［J］. Chemosphere,2011,84(6):846-853.
［3］Wu L,Zhang C,Hu H,et al. Phosphorus and shortchain fatty acids recovery from waste activated sludge by anaerobic fermentation:Effect of acid or alkali pretreatment［J］. Bioresour Technol,2017,240:192-196.
［4］Yuan Z,Pratt S,Batstone D J. Phosphorus recovery from wastewater through microbial processes［J］. Current Opinion in Biotechnology,2012,23(6):878-883.
［5］Shu L,Schneider P,Jegatheesan V,et al. An economic evaluation of phosphorus recovery as struvite from digester supernatant［J］. Bioresour Technol,2006,97(17):2211-2216.
［6］Wu Q,Bishop P L. Enhancing struvite crystallization from anaerobic supernatant［J］. Journal of Environmental Engineering & Science,2015,89(3):21-29.
［7］Cloete T E,Oosthuizen D J. The role of extracellular exopolymers in the removal of phosphorus from activated sludge［J］. Water Res,2001,35(15):3595-3598.
［8］Zou J,Li Y. Anaerobic fermentation combined with lowtemperature thermal pretreatment for phosphorusaccumulating granular sludge:Release of carbon source and phosphorus as well as hydrogen production potential［J］. Bioresour Technol,2016,218:18-26.
［9］Steckenmesser D,Vogel C,Adam C,et al. Effect of various types of thermochemical processing of sewage sludges on phosphorus speciation,solubility,and fertilization performance［J］. Waste Manage,2017,62:194-203.
［10］Val del Rio A,Morales N,Isanta E,et al. Thermal pretreatment of aerobic granular sludge:impact on anaerobic biodegradability［J］. Water Res,2011,45(18):6011-6020.
［11］薛濤,黃霞,郝王娟. 剩余污泥熱處理過程中磷、氮和有機碳的釋放特性［J］. 中國給水排水,2006,22(23):22-25. Xue Tao,Huang Xia,Hao Wangjuan. Characteristics of phosphorus,nitrogen and total organic carbon release in thermal excess sludge treatment process［J］. China Water & Wastewater,2006,22(23):22-25(in Chinese).
［12］Zhang M Y,Kuba T. Inhibitory effect of metal ions on the polyphosphate release from sewage sludge during thermal treatment［J］. Environ Technol,2014,35(9/12):1157-1162.
［13］Xu Y,Hu H,Liu J,et al. pH dependent phosphorus release from waste activated sludge:contributions of phosphorus speciation［J］. Chemical Engineering Journal,2015,267:260-265.
［14］Ruban V,LópezSánchez J F,Pardo P,et al. Harmonized protocol and certified reference material for the determination of extractable contents of phosphorus in freshwater sediments—a synthesis of recent works［J］. Fresenius Journal of Analytical Chemistry,2001,370(2/3):224-228.
［15］程振敏,魏源送,劉俊新. 酸堿預(yù)處理對常壓微波輻射剩余活性污泥磷釋放的影響［J］. 環(huán)境科學(xué),2009,30(4):1110-1114. Cheng Zhenmin,Wei Yuansong,Liu Junxin. Effect of acid and alkali on phosphorus release from sewage sludge in the microwave treatment process［J］. Environmental Science,2009,30(4):1110-1114(in Chinese).
［16］Weiler R R. Rate of loss of ammonia from water to the atmosphere［J］. Journal of the Fisheries Research Board of Canada,2011,36(6):685-689.
［17］陶飛飛,田晴,李方,等. 共存雜質(zhì)對磷酸銨鎂結(jié)晶法回收磷的影響研究［J］. 環(huán)境工程學(xué)報,2011,5(11):2437-2441. Tao Feifei,Tian Qing,Li Fang,et al. Effects of coexisting impurities on phosphorus recovery in magnesium ammonium phosphate crystallization［J］. Chinese Journal of Environmental Engineering,2011,5(11):2437-2441(in Chinese).
［18］許德超,周禮杰,尹魁浩,等. 低溫?zé)釅A破解低有機質(zhì)污泥及磷形態(tài)分析［J］. 環(huán)境工程學(xué)報,2017,11(10):5621-5629. Xu Dechao，Zhou Lijie，Yin Kuihao,et al. Disintegration and phosphorus forms of alkaline pretreatment with lowtemperature heating for loworganic sludge［J］. Chinese Journal of Environmental Engineering,2017,11(10):5621-5629(in Chinese).
相似文獻/References:
[1]張彥平,呼瑞琪,李一兵,等.高鐵酸鹽氧化剩余污泥溶胞減量研究[J].中國給水排水,2020,36(15):59.
ZHANG Yan-ping,HU Rui-qi,LI Yi-bing,et al.Lysis and Reduction of Excess Sludge by Ferrate Oxidation[J].China Water & Wastewater,2020,36(21):59.
[2]胡德秀,張聰,張艷.超聲強化污泥釋磷及MAP法磷回收優(yōu)化研究[J].中國給水排水,2020,36(15):65.
HU De-xiu,ZHANG Cong,ZHANG Yan.Phosphorus Release from Sludge Enhanced by Ultrasound and Optimization of Phosphorus Recovery by Magnesium Ammonium Phosphate Method[J].China Water & Wastewater,2020,36(21):65.
[3]晏習(xí)鵬,肖小蘭,亓金鵬,等.中試厭氧膜生物反應(yīng)器對剩余污泥的消化效果[J].中國給水排水,2020,36(19):1.
YAN Xi-peng,XIAO Xiao-lan,QI Jin-peng,et al.Digestion of Excess Sludge in a Pilot Anaerobic Membrane Bioreactor[J].China Water & Wastewater,2020,36(21):1.
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備注/Memo
基金項目：陜西省教育廳重點項目（17JS103）作者簡介：徐志嬙（1969- ），女，重慶人，博士，教授，主要從事污水再生利用與水生態(tài)修復(fù)技術(shù)研究。
E-mail:595269472@qq.com
收稿日期：2018-06-05
更新日期/Last Update: 2018-11-01
