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[1]張琪,鄧迎迎,劉元.從部分水解尿液中同步回收磷資源與電能[J].中國給水排水,2024,40(7):73-78.
ZHANGQi,DENGYing-ying,LIUYuan.Simultaneous Recovery of Phosphorus and Electricity from Partially Hydrolyzed Urine[J].China Water & Wastewater,2024,40(7):73-78.點擊復(fù)制
從部分水解尿液中同步回收磷資源與電能
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期數(shù): 2024年第7期 頁碼: 73-78 欄目: 出版日期: 2024-04-01
Title:Simultaneous Recovery of Phosphorus and Electricity from Partially Hydrolyzed Urine
作者:張琪1,2,3， 鄧迎迎2,3， 劉元2（1.重慶交通大學(xué) 河海學(xué)院，重慶 400074；2.中國科學(xué)院 重慶綠色智能技術(shù)研究院，重慶 400714；3.中國科學(xué)院大學(xué) 資源與環(huán)境學(xué)院，北京 100049）
Author(s):ZHANG Qi1，2，3， DENG Ying-ying2，3， LIU Yuan2（1. College of River and Ocean Engineering， Chongqing Jiaotong University， Chongqing 400074， China； 2. Chongqing Institute of Green and Intelligent Technology， Chinese Academy of Sciences， Chongqing 400714， China； 3. College of Resource and Environment， University of Chinese Academy of Sciences， Beijing 100049， China）
關(guān)鍵詞:尿液; 鳥糞石; 磷回收; 鎂空氣燃料電池; 尿素; 水解度
Keywords:urine; struvite; phosphorus recovery; magnesium-air fuel cell; urea; hydrolysis degree
摘要:部分水解尿液獲取方便，而鳥糞石是一種優(yōu)質(zhì)的含磷緩釋肥，具有較高的經(jīng)濟價值，故以部分水解尿液為研究對象，試圖在鎂空氣燃料電池平臺上實現(xiàn)高純度鳥糞石回收并保留尿液中的大部分尿素。尿液水解度理論計算和磷回收實驗的結(jié)果共同表明，10%的尿液水解度能夠提供足夠的銨鹽、堿度和緩沖能力，有利于鳥糞石沉淀的生成。鎂空氣燃料電池經(jīng)過60 min的反應(yīng)后，收集到的沉淀產(chǎn)物中鳥糞石（包括鉀型鳥糞石）占比為94.92%，此時對尿液中PO43--P的去除率可以達到95.86%，尿液中95.74%的初始尿素得以保留，并且每處理1 m3的尿液能夠同時回收0.044 kW·h的電能。因此，部分水解尿液可在鎂空氣燃料電池中實現(xiàn)高純度鳥糞石沉淀和電能的同步回收。
Abstract:It is easy to obtain partially hydrolyzed urine, and struvite is a high-quality phosphorus containing slow-release fertilizer with high economic value. This paper aimed to recover high-purity struvite precipitates from partially hydrolyzed urine and preserve most of the urea in a magnesium-air fuel cell (MAFC) platform. The results of urine hydrolyzed theoretical calculations and phosphorus recovery experiment showed that the hydrolysis degree of 10% was favor for the struvite precipitation since urine could provide sufficient ammonium salt, alkalinity and buffering capacity. After 60 min of reaction in MAFC, the proportion of struvite (including potassium struvite) in the collected precipitates was 94.92%, and the removal rate of PO43--P in the urine reached 95.86%. The initial urea with proportion of 95.74% was preserved, and the treatment of 1 m3 of urine simultaneously recovered 0.044 kW·h of electricity. Therefore, partially hydrolyzed urine can achieve simultaneous recovery of high-purity struvite precipitation and electricity in MAFCs.
相似文獻/References:
[1]馬躍龍,徐瑤瑤,劉寧,等.SBR/RO工藝源分離尿液處理特性研究[J].中國給水排水,2020,36(21):7.
MA Yue-long,XU Yao-yao,LIU Ning,et al.Treatment Characteristics of Source-separated Urine by SBR/RO Process[J].China Water & Wastewater,2020,36(7):7.
[2]胡蘭蘭,孫利利,陸茵,等.COD預(yù)處理對CPNA工藝尿液脫氮效率的影響[J].中國給水排水,2023,39(17):10.
HULan-lan,SUNLi-li,LUYin,et al.Effect of COD Pretreatment on Urine Nitrogen Removal Efficiency of CPNA Process[J].China Water & Wastewater,2023,39(7):10.
[3]楊皓元,杜子文,張立秋.尿液水解預(yù)處理后用于蔬菜水培的效果與風(fēng)險[J].中國給水排水,2024,40(1):110.
YANGHao-yuan,DUZi-wen,ZHANGLi-qiu.Performance and Risk of Hydrolyzed Urine for Hydroponic Vegetable Cultivation[J].China Water & Wastewater,2024,40(7):110.
更新日期/Last Update: 2024-04-01
[1]張琪,鄧迎迎,劉元.從部分水解尿液中同步回收磷資源與電能[J].中國給水排水,2024,40(7):73-78.
ZHANGQi,DENGYing-ying,LIUYuan.Simultaneous Recovery of Phosphorus and Electricity from Partially Hydrolyzed Urine[J].China Water & Wastewater,2024,40(7):73-78.
點擊復(fù)制
ZHANGQi,DENGYing-ying,LIUYuan.Simultaneous Recovery of Phosphorus and Electricity from Partially Hydrolyzed Urine[J].China Water & Wastewater,2024,40(7):73-78.
從部分水解尿液中同步回收磷資源與電能
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期數(shù): 2024年第7期 頁碼: 73-78 欄目: 出版日期: 2024-04-01
- Title:
- Simultaneous Recovery of Phosphorus and Electricity from Partially Hydrolyzed Urine
- Keywords:
- urine; struvite; phosphorus recovery; magnesium-air fuel cell; urea; hydrolysis degree
- 摘要:
- 部分水解尿液獲取方便，而鳥糞石是一種優(yōu)質(zhì)的含磷緩釋肥，具有較高的經(jīng)濟價值，故以部分水解尿液為研究對象，試圖在鎂空氣燃料電池平臺上實現(xiàn)高純度鳥糞石回收并保留尿液中的大部分尿素。尿液水解度理論計算和磷回收實驗的結(jié)果共同表明，10%的尿液水解度能夠提供足夠的銨鹽、堿度和緩沖能力，有利于鳥糞石沉淀的生成。鎂空氣燃料電池經(jīng)過60 min的反應(yīng)后，收集到的沉淀產(chǎn)物中鳥糞石（包括鉀型鳥糞石）占比為94.92%，此時對尿液中PO43--P的去除率可以達到95.86%，尿液中95.74%的初始尿素得以保留，并且每處理1 m3的尿液能夠同時回收0.044 kW·h的電能。因此，部分水解尿液可在鎂空氣燃料電池中實現(xiàn)高純度鳥糞石沉淀和電能的同步回收。
- Abstract:
- It is easy to obtain partially hydrolyzed urine, and struvite is a high-quality phosphorus containing slow-release fertilizer with high economic value. This paper aimed to recover high-purity struvite precipitates from partially hydrolyzed urine and preserve most of the urea in a magnesium-air fuel cell (MAFC) platform. The results of urine hydrolyzed theoretical calculations and phosphorus recovery experiment showed that the hydrolysis degree of 10% was favor for the struvite precipitation since urine could provide sufficient ammonium salt, alkalinity and buffering capacity. After 60 min of reaction in MAFC, the proportion of struvite (including potassium struvite) in the collected precipitates was 94.92%, and the removal rate of PO43--P in the urine reached 95.86%. The initial urea with proportion of 95.74% was preserved, and the treatment of 1 m3 of urine simultaneously recovered 0.044 kW·h of electricity. Therefore, partially hydrolyzed urine can achieve simultaneous recovery of high-purity struvite precipitation and electricity in MAFCs.
相似文獻/References:
[1]馬躍龍,徐瑤瑤,劉寧,等.SBR/RO工藝源分離尿液處理特性研究[J].中國給水排水,2020,36(21):7.
MA Yue-long,XU Yao-yao,LIU Ning,et al.Treatment Characteristics of Source-separated Urine by SBR/RO Process[J].China Water & Wastewater,2020,36(7):7.
[2]胡蘭蘭,孫利利,陸茵,等.COD預(yù)處理對CPNA工藝尿液脫氮效率的影響[J].中國給水排水,2023,39(17):10.
HULan-lan,SUNLi-li,LUYin,et al.Effect of COD Pretreatment on Urine Nitrogen Removal Efficiency of CPNA Process[J].China Water & Wastewater,2023,39(7):10.
[3]楊皓元,杜子文,張立秋.尿液水解預(yù)處理后用于蔬菜水培的效果與風(fēng)險[J].中國給水排水,2024,40(1):110.
YANGHao-yuan,DUZi-wen,ZHANGLi-qiu.Performance and Risk of Hydrolyzed Urine for Hydroponic Vegetable Cultivation[J].China Water & Wastewater,2024,40(7):110.
更新日期/Last Update: 2024-04-01
