Environmental Engineering Science最新文献_第2页

A Lightweight Deep Learning Algorithm for Multi-Objective Detection of Recyclable Domestic Waste 一种轻量级的可回收生活垃圾多目标检测深度学习算法

4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-10-10 DOI: 10.1089/ees.2023.0138

Qunbiao Wu, Tao Liang, Haifeng Fang, Yangyang Wei, Mingqiang Wang, Defang He

{"title":"A Lightweight Deep Learning Algorithm for Multi-Objective Detection of Recyclable Domestic Waste","authors":"Qunbiao Wu, Tao Liang, Haifeng Fang, Yangyang Wei, Mingqiang Wang, Defang He","doi":"10.1089/ees.2023.0138","DOIUrl":"https://doi.org/10.1089/ees.2023.0138","url":null,"abstract":"In light of the rapid development of human society, there has been a notable surge in waste production, which has resulted in environmental pollution and degradation. This is a pervasive issue that requires attention. To address the environmental problems caused by waste generation and advance the development of recyclable domestic waste detection, this article proposes waste classification as a solution. Traditional waste sorting methods have proven to be inefficient and prone to errors, hence the need for a more effective approach. A multiobjective recyclable domestic waste detection and classification method based on improved You Only Look Once v5s (YOLOv5s) is proposed in this study. In this study, the network structure is enhanced through the implementation of the Bidirectional Pyramid Network (BiFPN). The coordinate attention mechanism is then incorporated to elevate the accuracy of the model. Additionally, the loss function is refined by adopting the Efficient Intersection Over Union Loss (EIOU_Loss) metric to further optimize network performance. Finally, the introduction of the Ghost convolution module reduces parameter count and significantly improves the real-time detection speed. The waste dataset named Multi-classified Recyclable Domestic Trash Identification Dataset (MULTI-TRASH), which is composed of machine shooting, web crawler, and artificial photography, is used for verification due to its good generalization and representativeness. The mean Average Precision at a threshold of 0.5 ([email protected]) value of 94.8% is achieved by the improved model, which is a 30.72% reduction in the number of parameters and a 1.2% improvement in the [email protected] value compared with YOLOv5s. The effectiveness of the proposed algorithm is proved by a comparison with other target detection algorithms. This study aims to provide technical references for the development of a recyclable domestic waste detection system.","PeriodicalId":11777,"journal":{"name":"Environmental Engineering Science","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136356846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recirculating Vertical Hydroponic Systems: Effect of Light and Nutrient Solution Composition on Nitrification Activity 垂直循环水培系统:光照和营养液组成对硝化活性的影响

4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-10-03 DOI: 10.1089/ees.2023.0181

Jorge L. Calabria, Armando Oliva, Piet N.L. Lens, Daniel H. Yeh

{"title":"Recirculating Vertical Hydroponic Systems: Effect of Light and Nutrient Solution Composition on Nitrification Activity","authors":"Jorge L. Calabria, Armando Oliva, Piet N.L. Lens, Daniel H. Yeh","doi":"10.1089/ees.2023.0181","DOIUrl":"https://doi.org/10.1089/ees.2023.0181","url":null,"abstract":"Nitrogen-rich effluents from anaerobic processes present nutrient resource recovery opportunities for fertilizer applications in hydroponic systems, thus facilitating agricultural production in less conventional contexts such as urbanized areas. However, the high ammonia and soluble chemical oxygen demand, which is common in anaerobic digestate, can inhibit crop development in a hydroponic system, requiring conditioning to enable optimal performance of the system. This study examines the use of three nutrient sources to support the growth of lettuce (Lactuca sativa) in vertical hydroponic systems: (i) synthetic permeate (SP) solution, (ii) desorption solution (DS) from an anaerobic membrane bioreactor (AnMBR), and (iii) DS modified with acetic acid addition. Two light conditions were used to observe the effect of photon flux (from 150–200 to 10–15 μmol/[m2·s]) on lettuce crop development and nitrification efficiency of the treated AnMBR permeate. Fresh and dry mass of the harvested lettuce crops as well as chlorophyll content were measured as an indicator of crop quality after a 13-day development period. Crops grown under well-lit conditions in DS had harvested fresh weight (2929.0 ± 454.6 mg/plant) than SP-grown crops (2646.2 ± 908.8 mg/plant). The lighting conditions did not significantly impact the nitrification efficiency; thus nitrate, the preferred form of nitrogen for supporting lettuce crop development, was sufficiently available to support crop growth in the recirculating hydroponic systems.","PeriodicalId":11777,"journal":{"name":"Environmental Engineering Science","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135690003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Are Showerhead Filters Retailed Online a Scam? Investigating Water Quality Claims Through a Course-Based Research Experience 淋浴喷头过滤器在网上零售是骗局吗?通过基于课程的研究经验调查水质索赔

4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-10-01 DOI: 10.1089/ees.2023.0099

Elizabeth Dach, Lara David, Julian Van der Made, Mariah Pope, Joshua Chabeda, Adam Brown, John C. Foo, Ngai Yin Yip

{"title":"Are Showerhead Filters Retailed Online a Scam? Investigating Water Quality Claims Through a Course-Based Research Experience","authors":"Elizabeth Dach, Lara David, Julian Van der Made, Mariah Pope, Joshua Chabeda, Adam Brown, John C. Foo, Ngai Yin Yip","doi":"10.1089/ees.2023.0099","DOIUrl":"https://doi.org/10.1089/ees.2023.0099","url":null,"abstract":"Showerhead filters are point-of-use devices installed just before showerheads to alter bathing water quality. Such products are gaining popularity but are presently not under any regulatory oversight. Sellers of showerhead filters make wide-ranging claims, including removing harmful substances, modifying pH, and adding elements to the water matrix, and tout health and cosmetic benefits, but without providing substantiating evidence upfront. This study evaluates selected water chemistry parameters, including pH and concentrations of vitamin C, fluoride, and chlorine, of five showerhead filters sold on AMAZON.COM and finds that most of the sellers' water quality claims are not met. Instead, some filters change a number of water quality parameters opposite to what is marketed, for example, water hardness and dissolved oxygen. We conclude that the sellers of showerhead filters are, at the very least, guilty of promoting misleading advertisements, but more likely culpable of exploiting pseudoscience to profit from consumers' poor literacy in water chemistry. This study is the outcome of a course-based research experience for senior undergraduate and junior graduate students implemented in a technical elective on environmental physicochemical processes. Through sharing the design and execution of this experimental investigation and discussing the wider pedagogical benefits, this study further aims to stimulate others to explore the integration of research and education. On a broader perspective, this study sheds light on the worrying contagion of pseudoscience in water quality engineering and underscores the urgent need to enlighten the public and promote their scientific literacy.","PeriodicalId":11777,"journal":{"name":"Environmental Engineering Science","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135324153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photocatalytic Performance of Boron-Doped TiO₂ for Treatment of Rhodamine-B Dye and Industrial Wastewater Under Ultraviolet Irradiation 硼掺杂TiO2处理罗丹明- b染料及工业废水的紫外光催化性能

4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-10-01 DOI: 10.1089/ees.2023.0026

Shreyansh Tatiya, Mohit Pandey, Satyam Gupta, Shantanu Bhattacharya

{"title":"Photocatalytic Performance of Boron-Doped TiO2 for Treatment of Rhodamine-B Dye and Industrial Wastewater Under Ultraviolet Irradiation","authors":"Shreyansh Tatiya, Mohit Pandey, Satyam Gupta, Shantanu Bhattacharya","doi":"10.1089/ees.2023.0026","DOIUrl":"https://doi.org/10.1089/ees.2023.0026","url":null,"abstract":"The organic dyes that have been added to water by various industrial effluents possess a serious threat to the environment due to their mutagenic character. TiO2 has been widely employed as a photocatalysis for the degradation of these dyes. However, a non-metal doped TiO2 can be a promising candidate for the advanced treatment of industrial wastewater containing organic dyes. In this work, we have prepared and tested different boron-doped TiO2 photocatalysts to examine the effect of boron addition on the photocatalytic activity of TiO2. The various boron precursors used are boric acid (BA), boron oxide (BO), and boron nitride (BN), through which Boron is formulated and is doped through a single-step sol-gel method. The prepared nanocomposites are characterized using various characterization techniques, such as Field Emission Scanning Electron Microscopy (FESEM), Transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) and Raman spectroscopy, X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, photoluminescence, and X-ray Photoelectron Spectroscopy (XPS) analysis. UV light of wavelength 365 nm has been used for studying the photocatalyst behavior. Both rhodamine-B (RhB) and industrial wastewater samples have been studied for degradation kinetics. The boron-doped TiO2 nanocomposites show a high level of dye degradation (>95%) with RhB dye and (>63%) with industrial wastewater samples. Further, TiO2-BA composites in both the cases showed maximum dye degradation compared with other boron nanocomposites with an enhancement in the efficiency of (>13%) over a pure phase of TiO2.","PeriodicalId":11777,"journal":{"name":"Environmental Engineering Science","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135323889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simultaneous Removal of Ammonium and Nitrite in Aqueous Suspensions of Ferric Tannate Powder by Adsorption and Catalysis 吸附与催化同时去除丹酸铁粉水悬浮液中的铵和亚硝酸盐

4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-10-01 DOI: 10.1089/ees.2023.0012

Zhu Liang, Mingluo Zhou, Zhou Xu, Yuankun Yang

{"title":"Simultaneous Removal of Ammonium and Nitrite in Aqueous Suspensions of Ferric Tannate Powder by Adsorption and Catalysis","authors":"Zhu Liang, Mingluo Zhou, Zhou Xu, Yuankun Yang","doi":"10.1089/ees.2023.0012","DOIUrl":"https://doi.org/10.1089/ees.2023.0012","url":null,"abstract":"Ferric tannate (TA-Fe3+) has the potential to transform ammonium (NH4+) and nitrite (NO2−) into nitrogen gas (N2) through adsorption and catalysis. Few reports have given detailed account of different adsorption behavior for NH4+ and NO2−, which is important to develop the potential of the material. TA-Fe3+ was synthesized here and its performance as an adsorbent/catalyst for the simultaneous removal of NH4+ and NO2− from water was investigated. Results confirmed the adsorption and catalysis capability of TA-Fe3+ toward NH4+ and NO2−: (1) Following a 24 h adsorption and redox, the concentrations of NH4+ and NO2− in the mixed solution decreased from initial values of 10.71 and 7.14 to 4.28 and 1.64 mmol/L, respectively, and 0.41 mmol/g of N2 was produced with a maximal N2 yield rate of 0.072 mmol/[g·h]. The N2 yield was about 144 times that in the absence of TA-Fe3+; (2) intermediate products such as nitrous oxide (N2O) and nitrate (NO3−) were not detected; and (3) Raman spectrum analysis identified the site of Fe–O bond to be the center of adsorption and catalysis. Moreover, there were interesting findings: (1) TA-Fe3+ exhibited significantly distinct adsorption behavior toward NH4+ and NO2−. External diffusion and internal diffusion exerted a key influence on the adsorption toward NH4+ and NO2−, respectively; NH4+ was adsorbed on TA-Fe3+ in the form of monolayer, and NO2− in the forms of both monolayer and multilayer; (2) TA-Fe3+ was easily regenerated with water; and (3) adsorption toward NO2− was the rate-determining step of the catalytic reaction. These findings will provide valuable enlightenment for the further work to reveal the adsorption and catalysis mechanisms of TA-Fe3+.","PeriodicalId":11777,"journal":{"name":"Environmental Engineering Science","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135367689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Introducing MXenes into the Heterogeneous Catalyst: Synthesizing Mo₂CT_x@Fe₃O₄ with Excellent Recoverability to Degrade Methylisothiazolinone in the Electro-Fenton System 将MXenes引入非均相催化剂:在电fenton系统中合成具有优异回收率的降解甲基异噻唑啉酮Mo2CTx@Fe3O4

4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-09-25 DOI: 10.1089/ees.2023.0078

Liping Wei, Kexin Zhou, Qian Rao, Hui-qiang Li, Ping Yang

{"title":"Introducing MXenes into the Heterogeneous Catalyst: Synthesizing Mo2CTx@Fe3O4 with Excellent Recoverability to Degrade Methylisothiazolinone in the Electro-Fenton System","authors":"Liping Wei, Kexin Zhou, Qian Rao, Hui-qiang Li, Ping Yang","doi":"10.1089/ees.2023.0078","DOIUrl":"https://doi.org/10.1089/ees.2023.0078","url":null,"abstract":"Methylisothiazolinone (MIT) is a commonly used bactericide in wastewater treatment. Residual MIT in wastewater can lead to high environmental risks and toxicity. In this work, an emerging material MXenes has been introduced into the heterogeneous electro-Fenton catalysts to degrade MIT. Ti3C2Tx@Fe3O4, V2CTx@Fe3O4, and Mo2CTx@Fe3O4 were assessed as catalysts for MIT removal. The reasons for the differences among the three catalyst effects were analyzed according to different characterization results. Mo2CTx@Fe3O4 exhibited the best catalytic activity for MIT degradation. At pH = 3, the removal rate of MIT and corresponding chemical oxygen demand of catalyst Mo2CTx@Fe3O4 were 93.41% and 62.46% after 120 min. Among the three catalysts, Mo2CTx@Fe3O4 had larger surface area and porosity. Mo2CTx@Fe3O4 had the highest surface iron content, which meant that Fe3O4 was more easily loaded on the surface of Mo2CTX. What is more, Mo2CTX had the strongest ability to accelerate the regeneration of Fe2+. The durability of Mo2CTx@Fe3O4 was also evaluated. After four cycles, the removal efficiency of MIT only decreased from 92.51% to 89%. This work supports the development of heterogeneous electro-Fenton catalysts and the degradation of MIT.","PeriodicalId":11777,"journal":{"name":"Environmental Engineering Science","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135860768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison Study on FeS-Activated Peroxymonosulfate, Persulfate, and Hydrogen Peroxide for Allura Red AC Decoloration fes活化过氧单硫酸盐、过硫酸盐和过氧化氢对紫红色AC脱色的比较研究

IF 1.8 4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-09-07 DOI: 10.1089/ees.2023.0070

Haijun Li, Yuhang Fu, Min Wang, L. Dong, Na Liu

引用次数: 0

AEESP President's Letter AEESP主席的信

IF 1.8 4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-09-06 DOI: 10.1089/ees.2023.0201

Debora Frigi Rodrigues

引用次数: 0

Effects of Metal Additives (Fe, Zn, and Sn) on the Co-Pyrolysis of Rice Husk and Cow Manure 金属添加剂(铁、锌、锡)对稻壳和牛粪共热解的影响

IF 1.8 4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-09-01 DOI: 10.1089/ees.2023.0030

Wen Qiu, Ying Liu, Jiacheng Liu, G. Fan, Guangsen Song, Q. Cheng

引用次数: 0

Sulfur-Modified Biochar Efficiently Removes Cr(VI) from Water by Sorption and Reduction 硫改性生物炭通过吸附和还原有效地去除水中的铬(VI)

IF 1.8 4区环境科学与生态学

Environmental Engineering Science Pub Date : 2023-08-15 DOI: 10.1089/ees.2023.0046

Zhongcheng Du, Mingyu Yang, Yifan Yang, Xiaolei Zhang, Huihui Chen, H. Ngo, Qiang Liu

引用次数: 0