[1]方俊華,曠鵬,程思捷,等.污泥水熱炭中磷及主要伴生金屬元素的浸出行為[J].中國給水排水,2024,40(3):101-106.
FANGJun-hua,KUANGPeng,CHENGSi-jie,et al.Leaching Behavior of Phosphorus and Main Associated Metal Elements from Sludge Hydrothermal Carbon[J].China Water & Wastewater,2024,40(3):101-106.點擊復(fù)制
污泥水熱炭中磷及主要伴生金屬元素的浸出行為
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期數(shù): 2024年第3期 頁碼: 101-106 欄目: 出版日期: 2024-02-01
Title:Leaching Behavior of Phosphorus and Main Associated Metal Elements from Sludge Hydrothermal Carbon
作者:方俊華1， 曠鵬1， 程思捷1， 唐琦2（1.重慶大學(xué) 三峽庫區(qū)生態(tài)環(huán)境教育部重點實驗室，重慶 400045；2.成都市自來水有限責(zé)任公司，四川 成都 610031）
Author(s):FANG Jun-hua1， KUANG Peng1， CHENG Si-jie1， TANG Qi2（1. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment ，Chongqing University， Chongqing 400045， China； 2. Chengdu Municipal Waterworks Co. Ltd.， Chengdu 610031， China）
關(guān)鍵詞:污泥水熱炭; 磷回收; 金屬; 浸出
Keywords:sludge hydrothermal carbon; phosphorus recovery; metals; leaching
摘要:以水熱碳化對市政污泥進(jìn)行預(yù)處理，采用硫酸法對制得的污泥水熱炭進(jìn)行磷提取實驗，同時考慮鈣、鐵、鋁的釋放，探究硫酸濃度、浸出時間、液固比對磷提取效果的影響。結(jié)果表明，水熱炭中磷的形態(tài)以Ca-P、Mg-P為主，該形態(tài)有利于磷的提取利用。磷及相關(guān)金屬的浸出率隨硫酸濃度的增大而升高。長時間浸出會導(dǎo)致溶液形成硫酸鈣晶體，降低磷和鈣的浸出率，鐵和鋁的浸出率隨著浸出時間的增加而升高，但所需浸出時間較長。液固比通過影響水熱炭與酸的接觸面積來影響磷及相關(guān)金屬的浸出效果。在硫酸濃度為0.5 mol/L、浸出時間為120 min及液固比為50 mL/g的條件下，水熱炭中磷的浸出效果最好，浸出率為93.8%，鈣、鐵、鋁的浸出率分別為70.4%、54.5%、65.8%。
Abstract:Municipal sludge was pretreated by hydrothermal carbonization method, and phosphorous was extracted from the sludge hydrothermal carbon by sulfuric acid method. Considering the release of calcium, iron and aluminum, the effects of sulfuric acid concentration, leaching time and liquid-solid ratio on the phosphorus extraction performance was investigated. The forms of phosphorus in hydrothermal carbon were mainly Ca-P and Mg-P, which were conducive to the extraction and utilization of phosphorus. The leaching rates of phosphorus and related metals showed an overall increasing trend with the increase of sulfuric acid concentration. Long leaching time led to the formation of calcium sulfate crystals in the solution, and reduced the leaching rates of phosphorus and calcium. The leaching rates of iron and aluminum increased with the increase of leaching time. However, the leaching time was longer. The liquid-solid ratio affected the leaching performance of phosphorus and related metals by influencing the contact area between hydrothermal carbon and acid. When the sulfuric acid concentration was 0.5 mol/L, leaching time was 120 min and liquid-solid ratio was 50 mL/g, the maximum leaching rate of phosphorus from hydrothermal carbon was 93.8%, and the leaching rates of calcium, iron and aluminum was 70.4%, 54.5% and 65.8%, respectively.
相似文獻(xiàn)/References:
[1]郝曉地,郭小媛,時琛,等.污泥焚燒灰分磷回收Ash Dec工藝及其研究進(jìn)展[J].中國給水排水,2022,38(14):17.
HAOXiao-di,GUOXiao-yuan,SHIChen,et al.Advances in the Ash Dec Process for Phosphorus Recovery from Sludge Incineration Ash[J].China Water & Wastewater,2022,38(3):17.
[2]丁燕燕,于鴻宇,戴曉虎.污泥中的磷及回收技術(shù)研究進(jìn)展[J].中國給水排水,2022,38(16):29.
DINGYan-yan,YUHong-yu,DAIXiao-hu.Research Progress on Phosphorus in Sludge and Its Recovery Technology[J].China Water & Wastewater,2022,38(3):29.
[3]郝曉地,李季,吳遠(yuǎn)遠(yuǎn),等.藍(lán)色水工廠：框架與技術(shù)[J].中國給水排水,2023,39(4):1.
HAOXiao-di,LIJi,WUYuan-yuan,et al.Blue Water Factories (BWFs): Framework and Technologies[J].China Water & Wastewater,2023,39(3):1.
[4]丁鑫,李祥,畢貞,等.厭氧/好氧交替生物膜工藝?yán)迷刑荚椿厥樟譡J].中國給水排水,2023,39(5):1.
DINGXin,LIXiang,BIZhen,et al.Recovery of Phosphorus by Anaerobic/Aerobic Alternative Biofilm Process Using Organic Carbon from Raw Wastewater[J].China Water & Wastewater,2023,39(3):1.
更新日期/Last Update: 2024-02-01
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[1]方俊華,曠鵬,程思捷,等.污泥水熱炭中磷及主要伴生金屬元素的浸出行為[J].中國給水排水,2024,40(3):101-106.
FANGJun-hua,KUANGPeng,CHENGSi-jie,et al.Leaching Behavior of Phosphorus and Main Associated Metal Elements from Sludge Hydrothermal Carbon[J].China Water & Wastewater,2024,40(3):101-106.
點擊復(fù)制
FANGJun-hua,KUANGPeng,CHENGSi-jie,et al.Leaching Behavior of Phosphorus and Main Associated Metal Elements from Sludge Hydrothermal Carbon[J].China Water & Wastewater,2024,40(3):101-106.
污泥水熱炭中磷及主要伴生金屬元素的浸出行為
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期數(shù): 2024年第3期 頁碼: 101-106 欄目: 出版日期: 2024-02-01
- Title:
- Leaching Behavior of Phosphorus and Main Associated Metal Elements from Sludge Hydrothermal Carbon
- Keywords:
- sludge hydrothermal carbon; phosphorus recovery; metals; leaching
- 摘要:
- 以水熱碳化對市政污泥進(jìn)行預(yù)處理，采用硫酸法對制得的污泥水熱炭進(jìn)行磷提取實驗，同時考慮鈣、鐵、鋁的釋放，探究硫酸濃度、浸出時間、液固比對磷提取效果的影響。結(jié)果表明，水熱炭中磷的形態(tài)以Ca-P、Mg-P為主，該形態(tài)有利于磷的提取利用。磷及相關(guān)金屬的浸出率隨硫酸濃度的增大而升高。長時間浸出會導(dǎo)致溶液形成硫酸鈣晶體，降低磷和鈣的浸出率，鐵和鋁的浸出率隨著浸出時間的增加而升高，但所需浸出時間較長。液固比通過影響水熱炭與酸的接觸面積來影響磷及相關(guān)金屬的浸出效果。在硫酸濃度為0.5 mol/L、浸出時間為120 min及液固比為50 mL/g的條件下，水熱炭中磷的浸出效果最好，浸出率為93.8%，鈣、鐵、鋁的浸出率分別為70.4%、54.5%、65.8%。
- Abstract:
- Municipal sludge was pretreated by hydrothermal carbonization method, and phosphorous was extracted from the sludge hydrothermal carbon by sulfuric acid method. Considering the release of calcium, iron and aluminum, the effects of sulfuric acid concentration, leaching time and liquid-solid ratio on the phosphorus extraction performance was investigated. The forms of phosphorus in hydrothermal carbon were mainly Ca-P and Mg-P, which were conducive to the extraction and utilization of phosphorus. The leaching rates of phosphorus and related metals showed an overall increasing trend with the increase of sulfuric acid concentration. Long leaching time led to the formation of calcium sulfate crystals in the solution, and reduced the leaching rates of phosphorus and calcium. The leaching rates of iron and aluminum increased with the increase of leaching time. However, the leaching time was longer. The liquid-solid ratio affected the leaching performance of phosphorus and related metals by influencing the contact area between hydrothermal carbon and acid. When the sulfuric acid concentration was 0.5 mol/L, leaching time was 120 min and liquid-solid ratio was 50 mL/g, the maximum leaching rate of phosphorus from hydrothermal carbon was 93.8%, and the leaching rates of calcium, iron and aluminum was 70.4%, 54.5% and 65.8%, respectively.
相似文獻(xiàn)/References:
[1]郝曉地,郭小媛,時琛,等.污泥焚燒灰分磷回收Ash Dec工藝及其研究進(jìn)展[J].中國給水排水,2022,38(14):17.
HAOXiao-di,GUOXiao-yuan,SHIChen,et al.Advances in the Ash Dec Process for Phosphorus Recovery from Sludge Incineration Ash[J].China Water & Wastewater,2022,38(3):17.
[2]丁燕燕,于鴻宇,戴曉虎.污泥中的磷及回收技術(shù)研究進(jìn)展[J].中國給水排水,2022,38(16):29.
DINGYan-yan,YUHong-yu,DAIXiao-hu.Research Progress on Phosphorus in Sludge and Its Recovery Technology[J].China Water & Wastewater,2022,38(3):29.
[3]郝曉地,李季,吳遠(yuǎn)遠(yuǎn),等.藍(lán)色水工廠：框架與技術(shù)[J].中國給水排水,2023,39(4):1.
HAOXiao-di,LIJi,WUYuan-yuan,et al.Blue Water Factories (BWFs): Framework and Technologies[J].China Water & Wastewater,2023,39(3):1.
[4]丁鑫,李祥,畢貞,等.厭氧/好氧交替生物膜工藝?yán)迷刑荚椿厥樟譡J].中國給水排水,2023,39(5):1.
DINGXin,LIXiang,BIZhen,et al.Recovery of Phosphorus by Anaerobic/Aerobic Alternative Biofilm Process Using Organic Carbon from Raw Wastewater[J].China Water & Wastewater,2023,39(3):1.
更新日期/Last Update: 2024-02-01
