延长水力滞留时间下多孔基质处理生活污水的性能研究

Q3 Environmental Science Applied Environmental Research Pub Date : 2022-08-31 DOI:10.35762/aer.2022.44.3.4
Pakawat Janyasupab, A. Jampeetong
{"title":"延长水力滞留时间下多孔基质处理生活污水的性能研究","authors":"Pakawat Janyasupab, A. Jampeetong","doi":"10.35762/aer.2022.44.3.4","DOIUrl":null,"url":null,"abstract":"Physicochemical characteristics of porous substrates (longan biochar, corn biochar, and pumice) including specific surface area (SSA), pore volume (Vp), and cation exchange capacity (CEC) were determined. Longan biochar had the highest SSA, Vp, and CEC, followed by corn biochar and pumice. Then, columns filled with each of these 3 substrates together with gravel as a control treatment, were evaluated to compare wastewater treatment efficiency under different hydraulic retention times (HRTs). Each system had been acclimatized with wastewater for 8 weeks. Then, influent and effluent were analyzed at 1, 3, 5, and 7 day intervals. Water analysis revealed that biochar-based systems showed higher dissolved oxygen (DO) development and greater removal of biochemical oxygen demand (BOD5), total suspended solids (TSS), ammonium (NH4-N), total Kjeldahl nitrogen (TKN), and nitrate (NO3-N) than pumice and gravel-based systems. Prolongation of HRT significantly increased NO3-N removal and slightly increased BOD5 and TSS removal. Both BOD5 and TSS removal in biochar-based systems after 1 day HRT was about 93–94% while they significantly increased with HRT extension to a high of 97–98%. Furthermore, NO3-N removal in biochar-based systems increased from 47–48% after 1 day HRT to 80% after 5–7 days HRT. In addition, NH4-N and TKN removal was influenced by both substrate and HRT with significant interaction between these two factors. Longan biochar-based systems, in particular eliminated almost 90% of both NH4-N and TKN and the removal efficiency improved significantly after HRT was extended. Meanwhile, both NH4-N and TKN removal were only 20–30% in the gravel-based systems and 50-60% in pumice-based system. The study suggests that longan biochar is the most effective substrate. Longer HRTs were also found to increase the efficiency of removing organic matter and nitrogen.","PeriodicalId":36747,"journal":{"name":"Applied Environmental Research","volume":"120 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Performance of Porous Substrates for Domestic Wastewater Treatment under Prolonged Hydraulic Retention Time\",\"authors\":\"Pakawat Janyasupab, A. Jampeetong\",\"doi\":\"10.35762/aer.2022.44.3.4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Physicochemical characteristics of porous substrates (longan biochar, corn biochar, and pumice) including specific surface area (SSA), pore volume (Vp), and cation exchange capacity (CEC) were determined. Longan biochar had the highest SSA, Vp, and CEC, followed by corn biochar and pumice. Then, columns filled with each of these 3 substrates together with gravel as a control treatment, were evaluated to compare wastewater treatment efficiency under different hydraulic retention times (HRTs). Each system had been acclimatized with wastewater for 8 weeks. Then, influent and effluent were analyzed at 1, 3, 5, and 7 day intervals. Water analysis revealed that biochar-based systems showed higher dissolved oxygen (DO) development and greater removal of biochemical oxygen demand (BOD5), total suspended solids (TSS), ammonium (NH4-N), total Kjeldahl nitrogen (TKN), and nitrate (NO3-N) than pumice and gravel-based systems. Prolongation of HRT significantly increased NO3-N removal and slightly increased BOD5 and TSS removal. Both BOD5 and TSS removal in biochar-based systems after 1 day HRT was about 93–94% while they significantly increased with HRT extension to a high of 97–98%. Furthermore, NO3-N removal in biochar-based systems increased from 47–48% after 1 day HRT to 80% after 5–7 days HRT. In addition, NH4-N and TKN removal was influenced by both substrate and HRT with significant interaction between these two factors. Longan biochar-based systems, in particular eliminated almost 90% of both NH4-N and TKN and the removal efficiency improved significantly after HRT was extended. Meanwhile, both NH4-N and TKN removal were only 20–30% in the gravel-based systems and 50-60% in pumice-based system. The study suggests that longan biochar is the most effective substrate. Longer HRTs were also found to increase the efficiency of removing organic matter and nitrogen.\",\"PeriodicalId\":36747,\"journal\":{\"name\":\"Applied Environmental Research\",\"volume\":\"120 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-08-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Environmental Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.35762/aer.2022.44.3.4\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Environmental Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.35762/aer.2022.44.3.4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0

摘要

测定了多孔基质(龙眼生物炭、玉米生物炭和浮石)的理化特性,包括比表面积(SSA)、孔隙体积(Vp)和阳离子交换容量(CEC)。龙眼生物炭的SSA、Vp和CEC最高,玉米生物炭次之,浮石次之。然后,分别填充这3种基质和砾石作为对照处理,对不同水力滞留时间(HRTs)下的废水处理效率进行了评估。每个系统都用废水驯化了8周。然后,每隔1、3、5和7天对进水和出水进行分析。水分析表明,与浮石和砾石体系相比,生物炭体系具有更高的溶解氧(DO)生成和生化需氧量(BOD5)、总悬浮固体(TSS)、铵态氮(NH4-N)、总凯氏定氮(TKN)和硝酸盐(NO3-N)的脱除能力。延长HRT显著提高NO3-N去除率,略微提高BOD5和TSS去除率。HRT 1天后,生物炭基系统的BOD5和TSS去除率均为93-94%左右,而HRT延长后,BOD5和TSS去除率显著提高至97-98%。此外,生物炭基系统的NO3-N去除率在HRT 1天后从47-48%增加到HRT 5-7天后的80%。此外,NH4-N和TKN的去除率受底物和HRT的共同影响,两者之间存在显著的相互作用。尤其是龙眼生物炭体系,对NH4-N和TKN的去除率均接近90%,HRT延长后去除率显著提高。同时,在砾石基体系中,NH4-N和TKN的去除率仅为20-30%,在浮石基体系中为50-60%。研究表明,龙眼生物炭是最有效的基质。更长的hrt也被发现可以提高去除有机物和氮的效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Performance of Porous Substrates for Domestic Wastewater Treatment under Prolonged Hydraulic Retention Time
Physicochemical characteristics of porous substrates (longan biochar, corn biochar, and pumice) including specific surface area (SSA), pore volume (Vp), and cation exchange capacity (CEC) were determined. Longan biochar had the highest SSA, Vp, and CEC, followed by corn biochar and pumice. Then, columns filled with each of these 3 substrates together with gravel as a control treatment, were evaluated to compare wastewater treatment efficiency under different hydraulic retention times (HRTs). Each system had been acclimatized with wastewater for 8 weeks. Then, influent and effluent were analyzed at 1, 3, 5, and 7 day intervals. Water analysis revealed that biochar-based systems showed higher dissolved oxygen (DO) development and greater removal of biochemical oxygen demand (BOD5), total suspended solids (TSS), ammonium (NH4-N), total Kjeldahl nitrogen (TKN), and nitrate (NO3-N) than pumice and gravel-based systems. Prolongation of HRT significantly increased NO3-N removal and slightly increased BOD5 and TSS removal. Both BOD5 and TSS removal in biochar-based systems after 1 day HRT was about 93–94% while they significantly increased with HRT extension to a high of 97–98%. Furthermore, NO3-N removal in biochar-based systems increased from 47–48% after 1 day HRT to 80% after 5–7 days HRT. In addition, NH4-N and TKN removal was influenced by both substrate and HRT with significant interaction between these two factors. Longan biochar-based systems, in particular eliminated almost 90% of both NH4-N and TKN and the removal efficiency improved significantly after HRT was extended. Meanwhile, both NH4-N and TKN removal were only 20–30% in the gravel-based systems and 50-60% in pumice-based system. The study suggests that longan biochar is the most effective substrate. Longer HRTs were also found to increase the efficiency of removing organic matter and nitrogen.
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
Applied Environmental Research
Applied Environmental Research Environmental Science-Environmental Science (all)
CiteScore
2.00
自引率
0.00%
发文量
0
期刊最新文献
Exposure to Metal Accumulation in Chicken Giblets and Human Health Risk in Lokoja, Nigeria Assessing the Relationship and Effect of Air Pollution [PM 2.5] on Child Respiratory Illness and Child Mortality in the Philippines Metal Contamination in Household Dust and Their Health Risk Assessment: A Study in Two Malaysian Cities Effect of Operating Parameters on Photocatalytic Treatment of Synthetic Wastewater Using CaTiO3 Meteorological Conditions and PM2.5 Impact on COVID-19 Case Fatality Ratios (CFR) in Bangkok Metropolitan Region
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1