评估采用厌氧消化、好氧降解和电化学分离混合工艺处理猪废水并回收甲烷和营养物质的效果

IF 4.4 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Biosystems Engineering Pub Date : 2024-10-04 DOI:10.1016/j.biosystemseng.2024.09.022

Run-Feng Chen , Chun-Hai Wei , Hai-Tao Zhong , Xiu-Feng Ye , Jun-Jie Ye , Kai Liu , Quan-Bao Zhao , Huu Hao Ngo

{"title":"评估采用厌氧消化、好氧降解和电化学分离混合工艺处理猪废水并回收甲烷和营养物质的效果","authors":"Run-Feng Chen , Chun-Hai Wei , Hai-Tao Zhong , Xiu-Feng Ye , Jun-Jie Ye , Kai Liu , Quan-Bao Zhao , Huu Hao Ngo","doi":"10.1016/j.biosystemseng.2024.09.022","DOIUrl":null,"url":null,"abstract":"<div><div>A hybrid process of anaerobic digestion (AD), aerobic degradation, and electrochemical separation was evaluated for treating real swine wastewater that is rich in organic and nutrient to achieve methane and nutrient recovery and industry standard discharge quality. Fe anode electrocoagulation and Mg anode struvite electrochemical precipitation (SEP) were evaluated as AD pretreatments. Both removed partial chemical oxygen demand (COD) from raw swine wastewater, but only SEP slightly enhanced the methane yield of pretreated swine wastewater. The SEP efficiency of the AD effluent was significantly better than raw swine wastewater. A further coupled micro/ultra-filtration produced high-purity (96%) struvite. SEP and struvite chemical precipitation (SCP) were evaluated for AD effluent treatment. This showed that compared with SCP following first-order reaction kinetics (reaction rate constant of 0.791 and 0.854 h−1 for NH4+-N and PO43--P), SEP not only achieved better removal of COD, NH4+-N and PO43--P, but was also shown to follow zero-order reaction kinetics (reaction rate constant of 5.72 and 5.78 mmol L−1 h−1 for NH4+-N and PO43--P). The SEP and SCP treated AD effluent was evaluated by conventional activated sludge (CAS), showing faster COD removal (first-order reaction rate constant of 0. 213 and 0.163 h−1) and lower residual COD (150 and 248 mg L−1) from SEP than SCP treated AD effluent, making the final effluent well below Chinese livestock wastewater discharge standards. Therefore, an emerging hybrid anaerobic membrane bioreactor (AnMBR)-SEP-CAS is proposed for swine wastewater treatment and proved to be more economically viable than the conventional hybrid AD-SCP-CAS process via cost-benefit analysis.</div></div>","PeriodicalId":9173,"journal":{"name":"Biosystems Engineering","volume":"248 ","pages":"Pages 47-57"},"PeriodicalIF":4.4000,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluating a hybrid process of anaerobic digestion, aerobic degradation, and electrochemical separation for swine wastewater treatment with methane and nutrient recovery\",\"authors\":\"Run-Feng Chen , Chun-Hai Wei , Hai-Tao Zhong , Xiu-Feng Ye , Jun-Jie Ye , Kai Liu , Quan-Bao Zhao , Huu Hao Ngo\",\"doi\":\"10.1016/j.biosystemseng.2024.09.022\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A hybrid process of anaerobic digestion (AD), aerobic degradation, and electrochemical separation was evaluated for treating real swine wastewater that is rich in organic and nutrient to achieve methane and nutrient recovery and industry standard discharge quality. Fe anode electrocoagulation and Mg anode struvite electrochemical precipitation (SEP) were evaluated as AD pretreatments. Both removed partial chemical oxygen demand (COD) from raw swine wastewater, but only SEP slightly enhanced the methane yield of pretreated swine wastewater. The SEP efficiency of the AD effluent was significantly better than raw swine wastewater. A further coupled micro/ultra-filtration produced high-purity (96%) struvite. SEP and struvite chemical precipitation (SCP) were evaluated for AD effluent treatment. This showed that compared with SCP following first-order reaction kinetics (reaction rate constant of 0.791 and 0.854 h−1 for NH4+-N and PO43--P), SEP not only achieved better removal of COD, NH4+-N and PO43--P, but was also shown to follow zero-order reaction kinetics (reaction rate constant of 5.72 and 5.78 mmol L−1 h−1 for NH4+-N and PO43--P). The SEP and SCP treated AD effluent was evaluated by conventional activated sludge (CAS), showing faster COD removal (first-order reaction rate constant of 0. 213 and 0.163 h−1) and lower residual COD (150 and 248 mg L−1) from SEP than SCP treated AD effluent, making the final effluent well below Chinese livestock wastewater discharge standards. Therefore, an emerging hybrid anaerobic membrane bioreactor (AnMBR)-SEP-CAS is proposed for swine wastewater treatment and proved to be more economically viable than the conventional hybrid AD-SCP-CAS process via cost-benefit analysis.</div></div>\",\"PeriodicalId\":9173,\"journal\":{\"name\":\"Biosystems Engineering\",\"volume\":\"248 \",\"pages\":\"Pages 47-57\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2024-10-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biosystems Engineering\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1537511024002241\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRICULTURAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biosystems Engineering","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1537511024002241","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

摘要

对厌氧消化（AD）、好氧降解和电化学分离的混合工艺进行了评估，以处理富含有机物和营养物的真实猪场废水，实现甲烷和营养物的回收，并达到工业标准的排放质量。铁阳极电凝和镁阳极石英砂电化学沉淀 (SEP) 作为厌氧消化（AD）预处理方法进行了评估。这两种方法都能去除生猪废水中的部分化学需氧量（COD），但只有 SEP 能稍微提高预处理生猪废水的甲烷产量。厌氧消化（AD）出水的 SEP 效率明显优于生猪废水。进一步的耦合微滤/超滤产生了高纯度（96%）的硬石膏。针对厌氧消化（AD）废水处理，对 SEP 和硬石膏化学沉淀（SCP）进行了评估。结果表明，与采用一阶反应动力学（NH4+-N 和 PO43--P 的反应速率常数分别为 0.791 和 0.854 h-1）的 SCP 相比，SEP 不仅能更好地去除 COD、NH4+-N 和 PO43--P，而且采用零阶反应动力学（NH4+-N 和 PO43--P 的反应速率常数分别为 5.72 和 5.78 mmol L-1 h-1）。传统活性污泥法（CAS）对 SEP 和 SCP 处理后的厌氧消化污水进行了评估，结果表明，与 SCP 处理后的厌氧消化污水相比，SEP 的 COD 去除速度更快（一阶反应速率常数分别为 0.213 和 0.163 h-1），残留 COD 更低（分别为 150 和 248 mg L-1），最终出水远远低于中国畜禽养殖废水排放标准。因此，我们提出了一种新兴的厌氧膜生物反应器（AnMBR）-SEP-CAS 混合工艺用于猪废水处理，并通过成本效益分析证明该工艺比传统的 AD-SCP-CAS 混合工艺更具经济可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Evaluating a hybrid process of anaerobic digestion, aerobic degradation, and electrochemical separation for swine wastewater treatment with methane and nutrient recovery

查看原文本刊更多论文

Evaluating a hybrid process of anaerobic digestion, aerobic degradation, and electrochemical separation for swine wastewater treatment with methane and nutrient recovery

A hybrid process of anaerobic digestion (AD), aerobic degradation, and electrochemical separation was evaluated for treating real swine wastewater that is rich in organic and nutrient to achieve methane and nutrient recovery and industry standard discharge quality. Fe anode electrocoagulation and Mg anode struvite electrochemical precipitation (SEP) were evaluated as AD pretreatments. Both removed partial chemical oxygen demand (COD) from raw swine wastewater, but only SEP slightly enhanced the methane yield of pretreated swine wastewater. The SEP efficiency of the AD effluent was significantly better than raw swine wastewater. A further coupled micro/ultra-filtration produced high-purity (96%) struvite. SEP and struvite chemical precipitation (SCP) were evaluated for AD effluent treatment. This showed that compared with SCP following first-order reaction kinetics (reaction rate constant of 0.791 and 0.854 h⁻¹ for NH₄⁺-N and PO₄^3--P), SEP not only achieved better removal of COD, NH₄⁺-N and PO₄^3--P, but was also shown to follow zero-order reaction kinetics (reaction rate constant of 5.72 and 5.78 mmol L⁻¹ h⁻¹ for NH₄⁺-N and PO₄^3--P). The SEP and SCP treated AD effluent was evaluated by conventional activated sludge (CAS), showing faster COD removal (first-order reaction rate constant of 0. 213 and 0.163 h⁻¹) and lower residual COD (150 and 248 mg L⁻¹) from SEP than SCP treated AD effluent, making the final effluent well below Chinese livestock wastewater discharge standards. Therefore, an emerging hybrid anaerobic membrane bioreactor (AnMBR)-SEP-CAS is proposed for swine wastewater treatment and proved to be more economically viable than the conventional hybrid AD-SCP-CAS process via cost-benefit analysis.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Biosystems Engineering 农林科学-农业工程

CiteScore

10.60

自引率

7.80%

发文量

239

审稿时长

53 days

期刊介绍： Biosystems Engineering publishes research in engineering and the physical sciences that represent advances in understanding or modelling of the performance of biological systems for sustainable developments in land use and the environment, agriculture and amenity, bioproduction processes and the food chain. The subject matter of the journal reflects the wide range and interdisciplinary nature of research in engineering for biological systems.