Article
Environmental Sciences
Gang Wang, Quancheng Shu, Yuliang Zhu, Yucan Liu, Xiaoyong Yang, Daishun Wu, Hongwei Sun
Summary: This study systematically investigated the efficiency and mechanism of thermally activated persulfate (TAP) oxidation technology in improving the dewatering performance of surplus activated sludge. The results showed that the TAP treatment significantly increased the filterability and decreased the particle size of the sludge. Additionally, it facilitated the disintegration of sludge and conversion of certain EPS components. The findings of this study provide insights into the mechanism of TAP process in enhancing sludge dewatering performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Guanjun Wang, Dongdong Ge, Lu Bai, Yanting Dong, Chang Bian, Jiajia Xu, Nanwen Zhu, Haiping Yuan
Summary: This study investigated the effects of electrolysis-activated persulfate oxidation on improving sludge dewaterability, achieving a significant reduction in capillary suction time and water content of dewatered sludge cake. The enhancement of sludge dewaterability was closely associated with changes in floc size, zeta potential, protein content, and viscosity, providing new insight for enhancing sludge dewaterability in sludge treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Agricultural Engineering
Pengfei Wan, Ying Liu, Quandi Zhang, Li Jiang, Heping Chen, Wenzhou Lv
Summary: Candida Tropicalis was used to improve the dewaterability of activated sludge (AS) by degrading EPS in AS, resulting in a decrease in protein, polysaccharide, and hydrophilic amino acids in EPS. The yeast degraded macromolecular organics into smaller molecular ones and direct addition of yeast to AS was more effective in EPS degradation. Addition of 0.75 g/L of wet yeast cells and 24 h of aeration enhanced the dewaterability of AS with a reduction in CST and MLSS. After 30 days of operation, lab-scale continuous SBRs reduced CST and MLSS of AS. FTIR spectroscopy showed a decrease in hydrophilic functional groups. This study presents a new approach for in-situ reduction of AS in wastewater treatment plants.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xiaoran Li, Yafei Shi, Kewu Pi, Andrea R. Gerson
Summary: This study investigated the kinetics and oxidation process of Fe(II)-activated sodium persulfate (SPS) treatment on waste activated sludge (WAS). It was found that both proteins (PN) and polysaccharides (PS) followed pseudo-first-order kinetics during the treatment, with preferential oxidation of EPS proteins over EPS polysaccharides. The oxidation rates of PN and PS were higher in granular sludge (GS) compared to raw sludge filtrate (RSF). Additionally, a portion of the sodium persulfate was consumed in the GS solution, reducing the number of effective free radicals for EPS degradation. The mass balance of PN and PS indicated a significant degradation effect of Fe(II)-SPS conditioning on EPS in WAS.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Mingyue Tang, Zhiyue Wang, Weijun Zhang, Dongsheng Wang
Summary: Thermal activated persulfate oxidation was used to improve the dewaterability of wastewater sludge by decomposing macromolecular proteins. This process was found to generate beneficial radicals and enhance sludge dewaterability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Minjie Chen, Xiao Ling, Anhong Cai, Jing Deng, Shijun Zhu, Hanxuan Zeng, Xueyan Li
Summary: In this study, the dewaterability of waste activated sludge (WAS) was investigated using pyrite activated peroxydisulfate (PDS) conditioning, and the intrinsic mechanism was explored. The experimental results showed that the specific resistance to filtration (SRF) and sludge water content (Wc) decreased significantly with optimal pyrite and PDS dosages. Further analysis revealed that the reactive radicals generated through the reaction of pyrite/PDS destroyed the hydrophilic functional groups in the extracellular polymeric substances (EPS), leading to the release of bound water and the collapse of sludge floc structure. Additionally, the protein structure became looser, exposing the hydrophobic structures and contributing to improved sludge dewaterability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Xiaoran Li, Yafei Shi, Xi Zhou, Lu Wang, Huiqin Zhang, Kewu Pi, Andrea R. Gerson, Defu Liu
Summary: The study examined the impact of a composite conditioner, Fe2+/SPS combined with phosphogypsum, on sludges with varying organic and solid contents. Results showed that oxidation played a major role in conditioning, especially for higher organic matter content. Changes in phosphogypsum significantly affected the optimal molar ratio and dosage of Fe2+/SPS, with sludge containing more solids requiring higher Fe2+/SPS dosage for stronger oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Chang Bian, Dongdong Ge, Guanjun Wang, Yanting Dong, Wei Li, Nanwen Zhu, Haiping Yuan
Summary: The study introduced ultrasound-activated persulfate oxidation as a novel approach to enhance sludge dewaterability, showing significant improvements in reducing water content and capillary suction time. The treatment effectively degraded EPS matrix and attacked cells, releasing trapped moisture and promoting particle aggregation for moisture elimination. The conditioned dewatered sludge cakes met agricultural land requirements for heavy metals and showed significant changes in chemical speciation distribution.
Article
Environmental Sciences
Dongdong Ge, Yidan Zhu, Guobiao Li, Haiping Yuan, Nanwen Zhu
Summary: The Fe2+-activated persulfate conditioning process plays a key role in enhancing sludge dewaterability through the destruction and re-building of sludge flocs. The findings provide theoretical and technical support for the practical engineering implementation of this process.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Panpan Li, Yang Yu, Lixiang Zhu, Zhanhang Zhou, Wenjie Zhang, Peng Wu, Ran Yu
Summary: A novel technique involving zero-valent iron-activated persulfate and hydrothermal treatment was proposed to enhance sludge dewaterability. The results showed that this technique significantly improved the dewaterability of sludge under optimal conditions.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Wanqing Ding, Wenbiao Jin, Xu Zhou, Qinhui Yang, Chuan Chen, Qilin Wang
Summary: This study investigated the dewaterability of anaerobic granular sludge (AGS) by Fe(II)-PDS conditioning, finding that Fe(II)-PDS conditioning can enhance dewaterability by breaking down EPS layers and microbial cell structures, releasing bound water and facilitating sludge re-flocculation. Protein was identified as the primary component in AGS and showed a strong correlation with dewaterability.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Lu Bai, Guanjun Wang, Dongdong Ge, Yanting Dong, Hui Wang, Yuhui Wang, Nanwen Zhu, Haiping Yuan
Summary: Dewatering treatment is essential for reducing sludge volume, transportation costs, and improving disposal efficiency. This study investigated the use of the ozone-peroxymonosulfate (O-3/PMS) oxidation process to enhance sludge dewaterability. The results showed that the optimal dosage of 30 mg/g TS O-3 and 0.4 mmol/g TS PMS effectively reduced the sludge capillary suction time and water content, improved sludge zeta potential, particle size, and fluidity, and enhanced sludge dewatering performance. The study also analyzed the factors responsible for the improved dewaterability, such as changes in hydrophilic substances and protein secondary structure. The study found that the O-3/PMS process reduced the concentrations of heavy metals and polycyclic aromatic hydrocarbons (PAHs) in the sludge, as well as their stability and toxicity, except for zinc.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Zicong Liao, Yongyou Hu, Yuancai Chen, Jianhua Cheng
Summary: This study combined TAP treatment with struvite precipitation technology to enhance sludge dewaterability and phosphorus recovery, achieving resource utilization of waste activated sludge. TAP treatment effectively released phosphorus and nitrogen from sludge, while the income obtained from struvite precipitation covered the corresponding costs, demonstrating good economic benefits.
Article
Engineering, Environmental
Shaodong Guo, Long Zhou, Yuxin Huang, Xinghu Huang
Summary: Thermally and Fe(II) activated potassium persulfate (PPS) were compared for their effects on sludge dewatering performance. Both methods improved sludge dewaterability with increasing PPS dosage and condition time, but Fe(II) activation showed better performance at lower dosage and shorter time. Furthermore, Fe(II) activation led to faster conversion of sludge TB-EPS to SB-EPS compared to thermally activated PPS.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Jing Ai, Zhiyue Wang, Dionysios D. Dionysiou, Ming Liu, Yun Deng, Mingyue Tang, Guiying Liao, Aibin Hu, Weijun Zhang
Summary: The study utilized Fe(II)-sulfite oxidation and polyacrylamide flocculation (F/S-PAM) treatment to remove the bound water in waste activated sludge and improve sludge dewaterability. The radicals generated by F/S could decompose EPS, releasing bound water, while PAM caused re-flocculation of disintegrated sludge flocs, enhancing sludge filterability.
Article
Engineering, Environmental
Shengnan Chen, Jing Deng, Cheng Ye, Chengcheng Xu, Lingyi Huai, Xiao Ling, Jun Li, Xueyan Li
Summary: The pre-magnetized Fe-0/persulfate process was effectively employed for controlling the pollution of persanilic acid, with removal performance influenced by PS concentration and pre-Fe-0 dosage. The presence of Cl, NO3, and SO42 accelerated the degradation while HCO3 and HA inhibited it. Reactive oxygen species generated via the Fe2+/Fe3+ cycle played a key role in persanilic acid decomposition.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Chaoqun Tan, Xinchi Jian, Lianghu Su, Xu Lu, Juan Huang, Jing Deng, Wenhai Chu
Summary: The study found that ACT and PNT degradation under LED-UV365/PS treatment followed pseudo-first order kinetics, with higher rates observed at pH 8.5. Hydroxyl radicals and sulfate radicals played key roles in the removal of PNT and ACT, and LED-UV365/PS pre-oxidation effectively reduced the concentration of halogenated disinfection by-products.
Article
Engineering, Environmental
Pin Wang, Lingjun Bu, Yangtao Wu, Jing Deng, Shiqing Zhou
Summary: This study combined theoretical calculations and experimental studies to investigate the kinetics and mechanism of radical-mediated degradation of paracetamol in the UV/monochloramine process, providing deep insights into the degradation mechanism. The study identified the impact factors and reaction mechanisms of various radicals on the degradation of paracetamol, enriching the understanding of the paracetamol degradation mechanism.
Article
Engineering, Environmental
Xiaoyan Ma, Lei Wang, Hong Wang, Jing Deng, Yali Song, Qingsong Li, Xueyan Li, Andrea M. Dietrich
Summary: This research investigated the adsorption performance of high-quality metal-organic framework HKUST-1 towards aqueous humic acid (HA) and its potential for regeneration. The results showed that HKUST-1 exhibited high adsorption capacity for HA and could be successfully regenerated for multiple cycles. This study provides important experimental evidence for the further utilization of HKUST-1 in NOM removal.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Cheng Ye, Jing Deng, Lingyi Huai, Anhong Cai, Xiao Ling, Hongguang Guo, Qiongfang Wang, Xueyan Li
Summary: The study successfully achieved the degradation of organoarsenic and immobilization of inorganic arsenic by preparing cobalt-manganese-iron layered double hydroxide and oxide, with a removal efficiency of 100% for the target pollutant p-ASA. The catalytic performance and stability of CoMnFe-LDH/PMS system show great promise for the efficient control of organoarsenic pollutants, providing new insights and technical support for the field.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Jiabin Dan, Pinhua Rao, Qiongfang Wang, Lei Dong, Wenhai Chu, Min Zhang, Zedi He, Naiyun Gao, Jing Deng, Juxiang Chen
Summary: Copper-base catalysts with highly dispersed minute quantities of CuO were successfully prepared for efficiently activating peroxymonosulfate (PMS) to remove thiamphenicol (TAP). The optimal molar ratio of Cu and Mg in the catalyst (1:15, named CuMg-MMO) was determined, and under the optimal conditions, the TAP removal efficiency reached 99.9%. The CuMg-MMO catalyst demonstrated good reusability and stability, with SO4 center dot-, center dot O-2(-), and O-1(2) playing important roles in TAP degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jiabin Dan, Pinhua Rao, Qiongfang Wang, Min Zhang, Zedi He, Wenqi Zhang, Naiyun Gao, Jing Deng, Juxiang Chen
Summary: Cobalt oxide was used to activate peroxymonosulfate for the removal of contaminants, with highly dispersed minute quantities of CoO nanoparticles. The optimal molar ratio of Co/Mg catalyst was 1/200, and the mechanism of PMS activation by the catalyst was explained.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Jiabin Dan, Qiongfang Wang, Pinhua Rao, Lei Dong, Min Zhang, Xin Zhang, Zedi He, Naiyun Gao, Jing Deng
Summary: The research investigated bimetallic oxides with a package structure for efficient activation of PMS and degradation of BPA. The optimal molar ratio of Co and Mg and the influences of various factors on BPA degradation were evaluated. The addition of anions and NOM showed positive and negative effects on BPA degradation in the catalyst/PMS system, and the stability of the catalyst was demonstrated through leaching experiments. Additionally, the activation mechanism of PMS and proposed degradation pathways of BPA and its intermediates were analyzed.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Anhong Cai, Jing Deng, Cheng Ye, Tianxin Zhu, Xiao Ling, Shuwen Shen, Hongguang Guo, Xueyan Li
Summary: In this study, the combined use of UV-LED275 and FeCl3 was found to be effective in eliminating DEET in water, with the UVLED275/FeCl3 system showing the best removal efficiency at initial pH 3.5. DEET degradation followed pseudo-first-order kinetics, with hydroxyl radicals and superoxide radicals playing a major role in the process. Increasing FeCl3 dosage was beneficial to degradation, and the process was pH-dependent, with degradation increasing at lower pH levels and being suppressed at higher pH levels. Various factors such as NO3-, humic acid, HCO3-, and SO42- had different effects on DEET degradation.
Article
Environmental Sciences
Cheng Ye, Xiaoyan Ma, Jing Deng, Xueyan Li, Qingsong Li, Andrea M. Dietrich
Summary: Research shows that UV/H2O2 process is more effective in degrading saccharin, while UV/PS process is better suited for degrading organic pollutants. Both processes promote the generation of disinfection by-products, but prolonging pretreatment time is beneficial in reducing their formation.
Article
Engineering, Environmental
Feilong Dong, Zhen Pang, Jianquan Yu, Jing Deng, Xueyan Li, Xiaoyan Ma, Andrea M. Dietrich, Yang Deng
Summary: The study examined the distribution of halogenated disinfection byproducts in a two-source water distribution system with enhanced chlorination, finding that factors such as different water sources, treatment processes, and chlorination levels significantly influenced the spatial and seasonal variations of DBPs. Through innovative methodologies, the research identified high-risk areas for certain DBPs and revealed the effects of various factors on DBP distribution within the system.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Shijun Zhu, Zhiwei Wang, Cheng Ye, Jing Deng, Xiaoyan Ma, Yongpeng Xu, Liang Wang, Zehe Tang, Haojin Luo, Xueyan Li
Summary: In this study, a magnetic bimetallic Co/Fe nanocomposite derived from ferric sludge was created and used as an efficient peroxymonosulfate (PMS) activator for the degradation of antibiotic ciprofloxacin (CIP) in water. The CoFe@FS composite exhibited excellent catalytic performance and could effectively degrade CIP within a short time. The study also proposed the degradation mechanism and demonstrated the reusability of the composite material.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Tianxin Zhu, Jing Deng, Shijun Zhu, Anhong Cai, Cheng Ye, Xiao Ling, Hongguang Guo, Qiongfang Wang, Xueyan Li
Summary: The study found that UV/chlorine treatment can effectively degrade VEN, with the addition of chlorine and increase in solution pH facilitating VEN removal. HCO3-, Cl-, and HA were found to inhibit VEN degradation during UV/chlorine treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Qingsong Li, Chengran Lai, Jianwei Yu, Jingyu Luo, Jing Deng, Guoxin Li, Weizhu Chen, Boqiang Li, Guoyuan Chen
Summary: The study found that the UV/chlorine process can effectively remove DS from water, and the degradation of DS is influenced by factors such as chlorine dosage and solution pH. Increasing free chlorine dosage leads to the generation of more active species like NaClO and hydroxyl radicals, increasing their contribution to the degradation process.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Chemical
Chengcheng Xu, Jing Deng, Shijun Zhu, Xiao Ling, Songtu Shen, Hongguang Guo, Qiongfang Wang, Xueyan Li
Summary: The introduction of ascorbic acid into the Fe(III)/PS system greatly enhances the removal efficiency of DEET and other pollutants. Ascorbic acid plays important roles in working pH range, dosage, and the reaction mechanism. Additionally, the degradation pathways of DEET involve opening the benzene ring and removing the side chain.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Elizabeth Alvarez-Chavez, Stephane Godbout, Mylene Genereux, Caroline Cote, Alain N. Rousseau, Sebastien Fournel
Summary: This study evaluated the effect of alternative filtering materials and bed aeration on the retention of nutrients and fecal bacteria in woodchip bedded stand-off pads for cows. The results showed that the alternative biofilters were more efficient in removing COD, SS, TN, and NO3-N, while conventional biofilters were more efficient for PO4-P removal. Aeration did not have a significant effect under the tested temperature conditions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yike Zhang, Zengyi Ma, Zhuoting Fang, Yuandong Qian, Zhiping Huang, Yilong Ye, Jianhua Yan
Summary: This study investigates the application of oxygen enrichment melting technology in the melting of municipal solid waste incineration fly ash. The results demonstrate that oxygen enrichment technology can reduce energy consumption and operating costs, as well as decrease pollution emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Liangang Xiao, Mingkai Leng, Philip Greenwood, Rongqin Zhao, Zhixiang Xie, Zengtao You, Junguo Liu
Summary: This study investigates the effects of grazing exclusion on soil organic carbon (SOC) accumulation and vegetation recovery. It finds that grazing exclusion can increase the potential for SOC accumulation, and higher annual precipitation is positively correlated with SOC accumulation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Beatrice Cantoni, Jessica Ianes, Beatrice Bertolo, Selena Ziccardi, Francesco Maffini, Manuela Antonelli
Summary: This study evaluates the performance of ozonation and adsorption as in-series processes compared to standalone processes for the removal of Contaminants of Emerging Concern (CECs) in drinking water. The combination of both processes proves to be more effective than adsorption and ozonation alone. Ozonation improves the adsorption performance of poorly-oxidizable CECs but worsens that of well-oxidizable compounds. This research highlights the importance of considering both processes in the removal of CECs in drinking water treatment plants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Dan Li, Bingjun Liu, Yang Lu, Jianyu Fu
Summary: A new Standardized compound Drought and Saltwater intrusion Index (SDSI) was developed to detect changes in the severity of CDSEs in six estuaries. The study found that saltwater intrusion plays a dominant role in influencing SDSI severity, and CDSEs vary in frequency, duration and severity among different estuaries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yong-Qiang Li, Rui Sun, Chong-Miao Zhang, Zi-Xuan Liu, Rui-tao Chen, Jian Zhao, Hua-dong Gu, Huan-Cai Yin
Summary: In this study, an electron beam excitation multi-wavelength ultraviolet (EBE-MW-UV) system was established and found to have significantly higher microbial inactivation effects compared to single-wavelength UV-LEDs in water. Mechanism analysis revealed that EBE-MW-UV damaged microbial DNA and proteins, and generated additional reactive oxygen species, leading to microbial inactivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Kaili Ma, Xinxin Han, Qiujuan Li, Yu Kong, Qiaoli Liu, Xu Yan, Yahong Luo, Xiaopin Li, Huiyang Wen, Zhiguo Cao
Summary: This study reveals that the use of a tryptophan-degrading microbial consortium (TDC) can enhance the hydrolysis efficiency of waste activated sludge (WAS), increasing the yield and quality of short chain fatty acids (SCFAs) and improving the solubilization and release of organic substances from WAS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Ling Xiong, Rui Li
Summary: Incorporating Ecosystem Service Value (ESV) into land use planning can provide informed land management decisions. This study evaluates the ESV of Guizhou Province in China's karst region. The results show an increase in total ESV over the past two decades due to ecological restoration projects.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
M. Geetha Jenifel
Summary: This article discusses the importance of water and the pollution of freshwater resources, and introduces the use of machine learning models and blockchain technology to predict and protect water quality.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Stanslaus Terengia Materu, Taotao Chen, Chang Liu, Daocai Chi, Meng Jun
Summary: The study showed that H2SO4-modified biochar can reduce P leaching, increase soil available P, and enhance plant P uptake in alternate wetting and drying irrigation systems. Biochar additions B20A and IAWDB20A-M were effective in improving yield, reducing P leaching, and increasing APB.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Amir Nouri, Ali Akbar Zinatizadeh, Sirus Zinadini, Mark Van Loosdrecht
Summary: This study focuses on the development of an air-lift bio-electrochemical reactor (ALBER) with a continuous feeding regime to enhance nitrogen removal from synthetic wastewater. The effect of temperature, hydraulic retention time (HRT), N -NH+4 /TN ratio, and current density on the reactor performance was investigated, and the ALBER achieved a maximum TN removal of 73%. The results suggest that the ALBER has potential for treating industrial wastewater at low temperatures.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Peifang Wang, Guoxiang You, Yang Gao, Juan Chen, Xun Wang, Chao Wang
Summary: This study investigated the ecological processes of microbial communities and N- and P-transformation processes in multistage agricultural drainage ditches. The results showed that the microbial communities were co-shaped by agricultural practices and ditch size, which further governed the N and P removal performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Xiaofeng Niu, Huan Wang, Tao Wang, Peiyu Zhang, Huan Zhang, Hongxia Wang, Xianghong Kong, Songguang Xie, Jun Xu
Summary: Microorganisms play a critical role in maintaining ecosystem balance, and environmental stressors can affect the assembly processes of microbial communities. The study found that different stressors have opposite effects on microbial community assembly in water and sediment, and warming has different influences compared to herbicides and nutrients.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Yuqing Tan, Qiming Cheng, Fengwei Lyu, Fei Liu, Linhao Liu, Yihong Su, Shaochun Yuan, Wenyu Xiao, Zhen Liu, Yao Chen
Summary: The exacerbation of global warming, extreme weather events, and rapid urbanization have led to increased flooding in urban areas. China has adopted sponge city as an efficient means of preventing and controlling urban floods. Using a SWMM-FVCOM model, the hydrological reduction and control effect of sponge city construction (SPCC) within a university campus were evaluated. The study found that implementing SPCC effectively mitigates surface runoff and reduces the severity of urban flooding. However, the efficacy of runoff control decreases with longer rainfall return periods.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)
Article
Environmental Sciences
Zhonghan Chen, Qiuyan Li, Shibo Yan, Juan Xu, Qiaoyun Lin, Zhuangming Zhao, Ziying He
Summary: Tidal rivers are important biochemical reaction channels, receiving carbon from wastewater and agricultural drains, affecting CO2 emissions. Through modeling and data analysis, researchers explored carbon distribution, emissions, and greenhouse effects, emphasizing the potential of river management to change global CO2 emissions under climate change.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2024)