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Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

《环境科学与工程前沿（英文）》 2015年 第9卷 第1期   页码 155-163 doi: 10.1007/s11783-014-0740-3

摘要： High-pressure membrane process is one of the cost-effective technologies for the treatment of groundwater containing excessive dissolved solids. This paper reports a pilot study in treating a typical groundwater in Huaibei Plain containing excessive sodium, sulfate and fluoride ions. Three membrane systems were set up and two brands of reverse osmosis (RO), four low-pressure RO (LPRO) and one tight nanofiltration (NF) membranes were tested under this pilot study. An apparent recovery rate at about 75% was adopted. Cartridge filtration, in combination with dosing antiscalent, was not sufficient to reduce the fouling potential of the raw water. All RO and LPRO systems (except for the two severely affected by membrane fouling) demonstrated similar rejection ratios of the conductivity (~98.5%), sodium (~98.5%) and fluoride (~99%). Membrane fouling substantially reduced the rejection performance of the fouled membranes. The tight NF membrane also had a good rejection on conductivity (95%), sodium (94%) and fluoride (95%). All membranes rejected sulfate ion almost completely (more than 99%). The electricity consumptions for the RO, LPRO and NF systems were 1.74, 1.10 and 0.72 kWh?m treated water, respectively. The estimated treatment costs by using typical RO, LPRO and tight NF membrane systems were 1.21, 0.98 and 0.96 CNY?m finished water, respectively. A treatment process consisting of either LPRO or tight NF facilities following multi-media filtration was suggested.

关键词： reverse osmosis (RO)     nanofiltration (NF)     water quality standards     sodium     fluoride     cost estimation    

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Bioreduction of nitrate in groundwater using a pilot-scale hydrogen-based membrane biofilm reactor

Youneng TANG, Michal ZIV-EL, Chen ZHOU, Jung Hun SHIN, Chang Hoon AHN, Bruce E. RITTMANN, Kerry MEYER, Daniel CANDELARIA, David FRIESE, Ryan OVERSTREET, Rick SCOTT,

《环境科学与工程前沿（英文）》 2010年 第4卷 第3期   页码 280-285 doi: 10.1007/s11783-010-0235-9

摘要： A long-term pilot-scale H-based membrane biofilm reactor (MBfR) was tested for removal of nitrate from actual groundwater. A key feature of this second-generation pilot MBfR is that it employed lower cost polyester hollow fibers and still achieved high loading rate. The steady-state maximum nitrate surface loading at which the effluent nitrate and nitrite concentrations were below the Maximum Contaminant Level (MCL) was at least 5.9 g·N·(m·d), which corresponds to a maximum volumetric loading of at least 7.7 kg·N·(m·d) . The steady-state maximum nitrate surface area loading was higher than the highest nitrate surface loading reported in the first-generation MBfRs using composite fibers (2.6 g·N·(m·d)). This work also evaluated the H-utilization efficiency in MBfR. The measured H supply rate was only slightly higher than the stoichiometric H-utilization rate. Thus, H utilization was controlled by diffusion and was close to 100% efficiency, as long as biofilm accumulated on the polyester-fiber surface and the fibers had no leaks.

关键词： denitrification     groundwater treatment     hydrogen     membrane biofilm reactor (MBfR)     polyester fiber    

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An emerging market for groundwater remediation in China: Policies, statistics, and future outlook

Deyi Hou, Guanghe Li, Paul Nathanail

《环境科学与工程前沿（英文）》 2018年 第12卷 第1期 doi: 10.1007/s11783-018-1027-x

摘要： There is a rapidly emerging and potentially huge market for the remediation of contaminated groundwater in China. The Chinese government published a Water Action Plan in April 2015, a Soil Action Plan in May 2016, and a draft Soil Pollution Prevention and Control Law in June 2017. All of these new policies and regulations put pressures on local governments and contaminated site owners, obliging them to conduct site investigation and to cleanup contaminated groundwater. The Chinese population in northern regions heavily depend on groundwater, with nearly 70% of water supply coming from aquifer sources in the Beijing-Tianjin-Hebei region. However, poor groundwater quality due to natural geochemical background and anthropogeic pollution is a serious concern, with poor or very poor quality water observed in nearly 80% of groundwater monitoring wells in 17 northern provinces. Shallow groundwater in many areas has been contaminated by toxic pollutants such as heavy metals and chlorinated organic compounds. There is an urgent need to better understand the situation and to conduct groundwater remediation at contaminated sites. The Chinese government is investing heavily in the research and development for groundwater remediation, which is expected to greatly add to the quality and quantity of groundwater remediation projects in the near future.

关键词： Groundwater pollution     Contaminated land     Groundwater remediation     Emerging market    

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Arsenic geochemistry of groundwater in Southeast Asia

Kyoung-Woong Kim, Penradee Chanpiwat, Hoang Thi Hanh, Kongkea Phan, Suthipong Sthiannopkao

《医学前沿（英文）》 2011年 第5卷 第4期   页码 420-433 doi: 10.1007/s11684-011-0158-2

摘要： The occurrence of high concentrations of arsenic in the groundwater of the Southeast Asia region has received much attention in the past decade. This study presents an overview of the arsenic contamination problems in Vietnam, Cambodia, Lao People’s Democratic Republic and Thailand. Most groundwater used as a source of drinking water in rural areas has been found to be contaminated with arsenic exceeding the WHO drinking water guideline of 10 μg·L . With the exception of Thailand, groundwater was found to be contaminated with naturally occurring arsenic in the region. Interestingly, high arsenic concentrations (>10 μg·L ) were generally found in the floodplain areas located along the Mekong River. The source of elevated arsenic concentrations in groundwater is thought to be the release of arsenic from river sediments under highly reducing conditions. In Thailand, arsenic has never been found naturally in groundwater, but originates from tin mining activities. More than 10 million residents in Southeast Asia are estimated to be at risk from consuming arsenic-contaminated groundwater. In Southeast Asia, groundwater has been found to be a significant source of daily inorganic arsenic intake in humans. A positive correlation between groundwater arsenic concentration and arsenic concentration in human hair has been observed in Cambodia and Vietnam. A substantial knowledge gap exists between the epidemiology of arsenicosis and its impact on human health. More collaborative studies particularly on the scope of public health and its epidemiology are needed to conduct to fulfill the knowledge gaps of As as well as to enhance the operational responses to As issue in Southeast Asian countries.

关键词： arsenic     groundwater     drinking water     arsenicosis     Mekong River     Southeast Asia    

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Numerical simulation of benzene transport in shoreline groundwater affected by tides under different

《环境科学与工程前沿（英文）》 2022年 第16卷 第5期 doi: 10.1007/s11783-022-1540-9

摘要：

● An approach for assessing the transport of benzene on the beach was proposed.

关键词： Numerical simulation     Benzene     Transport and fate     Shoreline     Groundwater     Tide    

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Catalytic reduction for water treatment

Maocong Hu, Yin Liu, Zhenhua Yao, Liping Ma, Xianqin Wang

《环境科学与工程前沿（英文）》 2018年 第12卷 第1期 doi: 10.1007/s11783-017-0972-0

摘要： Treating water contaminants via heterogeneously catalyzed reduction reaction is a subject of growing interest due to its good activity and superior selectivity compared to conventional technology, yielding products that are non-toxic or substantially less toxic. This article reviews the application of catalytic reduction as a progressive approach to treat different types of contaminants in water, which covers hydrodehalogenation for wastewater treatment and hydrogenation of nitrate/nitrite for groundwater remediation. For hydrodehalogenation, an overview of the existing treatment technologies is provided with an assessment of the advantages of catalytic reduction over the conventional methodologies. Catalyst design for feasible catalytic reactions is considered with a critical analysis of the pertinent literature. For hydrogenation, hydrogenation of nitrate/nitrite contaminants in water is mainly focused. Several important nitrate reduction catalysts are discussed relating to their preparation method and catalytic performance. In addition, novel approach of catalytic reduction using in situ synthesized H evolved from water splitting reaction is illustrated. Finally, the challenges and perspective for the extensive application of catalytic reduction technology in water treatment are discussed. This review provides key information to our community to apply catalytic reduction approach for water treatment.

关键词： Halogenated compounds     Nitrate/nitrite contaminants     Hydrodechloriantion     Hydrogenation     Wastewater treatment     Groundwater remediation    

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我国地下水污染防治现状与对策研究

任静,李娟,席北斗,杨洋,鹿豪杰,史俊祥

《中国工程科学》 2022年 第24卷 第5期   页码 161-168 doi: 10.15302/J-SSCAE-2022.05.019

摘要：

地下水是我国重要的饮用水源和战略资源，但我国地下水水质总体不容乐观，污染防治工作总体起步较晚，地下水环境保护形势严峻，系统研判地下水污染防治工作面临的问题并提出针对性的对策，是遏制地下水污染趋势并实现稳中向好的重要保障。本文围绕地下水污染防治现有法规政策、管理现状及要求进行了系统梳理，并结合污染防治工作基础，对未来管理形势进行科学研判。结果表明，① 地下水污染底数尚不清晰，分级分类管控基础不牢；② 地下水污染形势日趋复杂，协同监管体系尚不完善；③ 地下水污染治理难度加大，污染防治成果应用不够；④ 地下水环境管理要求不断提升，污染防治创新动能不足。研究建议，通过持续推进重点区域地下水环境调查评估查明污染底数，支撑地下水污染的分级分类管控体系的建设；通过将多级地下水环境监测网建设和信息化监管手段相结合，实现地下水污染全过程防治的智能化、可视化协同监管；通过地下水污染防治项目试点实施及全国21 个地下水污染防治试验区建设，形成可复制、可推广的绿色可持续地下水污染防治模式；通过地下水污染溯源、标准体系构建、自主知识产权软件等关键技术问题集中攻坚，提升地下水污染防治技术原始创新与管理支撑能力。希望相关研究能为新发展阶段国家地下水污染防治提供理论指导和决策支撑。

关键词： 地下水污染防治；地下水监测网；地下水环境管理    

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Optimization model analysis of centralized groundwater source heat pump system in heating season

Shilei LU,Yunfang QI,Zhe CAI,Yiran LI

《能源前沿（英文）》 2015年 第9卷 第3期   页码 343-361 doi: 10.1007/s11708-015-0372-8

摘要： The ground-water heat-pump system (GWHP) provides a high efficient way for heating and cooling while consuming a little electrical energy. Due to the lack of scientific guidance for operating control strategy, the coefficient of performance (COP) of the system and units are still very low. In this paper, the running strategy of GWHP was studied. First, the groundwater thermal transfer calculation under slow heat transfixion and transient heat transfixion was established by calculating the heat transfer simulation software Flow Heat and using correction factor. Next, heating parameters were calculated based on the building heat load and the terminal equipment characteristic equation. Then, the energy consumption calculation model for units and pumps were established, based on which the optimization method and constraints were established. Finally, a field test on a GWHP system in Beijing was conducted and the model was applied. The new system operation optimization idea for taking every part of the GWHP into account that put forward in this paper has an important guiding significance to the actual operation of underground water source heat pump.

关键词： optimization model     groundwater source heat pump system     theoretical analysis     example verification     heating season    

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Evaluation of groundwater quality in the Xinjiang Plain Area

Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,

《环境科学与工程前沿（英文）》 2010年 第4卷 第2期   页码 183-186 doi: 10.1007/s11783-010-0021-8

摘要： Groundwater is the main source of drinking water for the urban and rural residents in the plain area of the Xinjiang Uygur Autonomous Region, China. The quality of groundwater has a direct relationship with human health. Thus, 386 groundwater samples collected from April to August in 2003 were analyzed. The samples were collected in basic evaluation units which are determined on the basis of watersheds. Total dissolved solids, total hardness, pH value, NH–N, CHOH, Chemiluminescence detection of permanganate index (COD) and intestinal germ group were evaluated according to the guidelines of Groundwater Quality Standard (GB/T14848-93). The quality of the groundwater in each evaluation unit was classified by using the One Veto Method (a unified approach stipulated by the Ministry of Water Resources). The results indicate that the groundwater in the mainstream area of the Tarim Basin and the Yerqiang River Sub-basin belongs to Category V; the groundwater in the Wulungu River Sub-basin, the Kaidu-Kongque River Sub-basin, the Kashgar River Sub-basin, the Cherchen River Sub-basin and the Hotan River Sub-basin belongs to Category IV; the groundwater in the Aibi Lake System belongs to Category II, and the groundwater of other evaluation units belongs to Category III. The causes of water quality formation were concisely analyzed. The results can be useful for the evaluation and management of water resources in the Xinjiang Plain Area.

关键词： groundwater quality     evaluation     one veto method     total dissolved solids (TDS)     pH     total hardness    

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Using hydrochemical signatures to characterize the long-period evolution of groundwater information in

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1393-7

摘要：

• The long-period groundwater evolution was identified by hydrochemical signatures.

关键词： Groundwater quality     Hydrochemical signatures     Spatial-temporal variations     Water-rock interactions     Anthropogenic interventions    

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Microbial responses to combined oxidation and catalysis treatment of 1,4-dioxane and co-contaminantsin groundwater and soil

Yu Miao, Nicholas W. Johnson, Kimberly Heck, Sujin Guo, Camilah D. Powell, Thien Phan, Phillip B. Gedalanga, David T. Adamson, Charles J. Newell, Michael S. Wong, Shaily Mahendra

《环境科学与工程前沿（英文）》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1071-6

摘要：

Groundwater microbial community was altered after catalysis and chemical oxidation.

The coupled treatment train removed 90% 1,4-dioxane regardless of co-contaminants.

Dynamics of microbial populations varied along with different treatment stages.

Many microbial taxa exhibited resilience against oxidative and catalytic treatments.

Metagenomic analysis will be valuable for long-term management of polluted sites.

关键词： Coupled treatments     Chlorinated solvents     Diethylene ether     Biological diversity     Microbial populations     Biomarkers    

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地下水处理厂污泥合成磁性吸附剂吸附四环素的研究 Article

曲展, 吴亚琼, 朱遂一, 于杨, 霍明昕, 张蕾蕾, 杨家宽, 边德军, 王艺

《工程（英文）》 2019年 第5卷 第5期   页码 880-887 doi: 10.1016/j.eng.2019.06.001

摘要：

地下水处理厂污泥是源自于地下水处理厂处理水过程中产生的工业废弃物。对于污泥来说，我们常规的处理方法包括排入深井、海洋或者直接在垃圾填埋场填埋，但这些方法因其对环境的影响都不具有可持续发展性。在这里，我们展示了一种新的处理策略即将污泥进行回收，仅用NaOH溶液便可以通过一步简单的水热法制得磁赤铁矿磁性吸附剂（magnetic adsorbent, MA）。经过弱磁化处理后的污泥形成了含有水铁矿、赤铁矿、石英和钠长石的混合物。随着NaOH的加入，污泥中的水铁矿转化为磁赤铁矿和赤铁矿。该条件下产生的磁性颗粒，在吸附四环素（tetracycline, TC）后容易与水分离。由于水铁矿溶解在高浓度的NaOH溶液中，使得大量的Si/Al氧化物（如石英和钠长石）溶解到液体中，从而促进了水铁矿的转化。当NaOH浓度为2 mol·L–1时，制得的吸附剂MA2的饱和磁化强度达到8.2 emu·g–1，表面位浓度为0.75 mmol·g–1。MA2对水中TC的吸附动力学符合伪二级动力学模型，等温吸附实验符合Langmuir模型。MA2对TC的最大吸附量为362.3 mg·g–1，阳离子交换为吸附的主要机制。本研究首次证明了在不添加还原剂或外加Fe源的情况下，将回收的污泥制备成MA的方法，制备的材料可作为低成本吸附剂，在含TC的废水中具有很好的吸附能力。

关键词： 地下水处理厂污泥     磁赤铁矿     阳离子交换     吸附     四环素    

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Assessing the impact on groundwater safety of inter-basin water transfer using a coupled modeling approach

Haifeng JIA,Shidong LIANG,Yansong ZHANG

《环境科学与工程前沿（英文）》 2015年 第9卷 第1期   页码 84-95 doi: 10.1007/s11783-014-0741-2

摘要： Surface water and groundwater always behave in a coupled manner and are major components of hydrologic cycle. However, surface water simulation models and groundwater simulation models are run separately most of the time. Few models focus on the impact of hydraulic changes in the surface water flows on the groundwater, or specifically, the impact of a water transfer project to fill a seasonally dry channel. In this study, a linked surface water and groundwater simulation model was developed to assess the impact of a trans-basin water diversion project on the groundwater. A typical plain area east of Beijing was selected as a case study, representing Beijing’s main source of groundwater used for drinking water. A surface water quality model of the Chaobai River was developed based on the Water Quality Analysis Simulation Program (WASP), and a groundwater model was developed based on the Modular Finite-Difference Groundwater Flow Model (MODFLOW) and the Modular 3-D transport model (MT3D). The results of the surface water simulation were used as input for the groundwater simulation. Water levels and four contaminants (NH -N, COD , F, As) were simulated. With the same initial and boundary conditions, scenario analyses were performed to quantify the impact of different quantities of diversion water on the groundwater environment. The results showed the water quality of the groundwater sources was not significantly affected.

关键词： surface water     groundwater     linked model     groundwater safety impact assessment     water diversion    

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Study on removing selenate from groundwater by autohydrogenotrophic microorganisms

Siqing XIA, Shuang SHEN, Jun LIANG, Xiaoyin XU

《环境科学与工程前沿（英文）》 2013年 第7卷 第4期   页码 552-558 doi: 10.1007/s11783-013-0531-2

摘要： Performance of autohydrogenotrophic bacteria for bio-reduction of selenate (Se(VI)) under anaerobic conditions was investigated with batch experiments. Results showed Se(VI) was bio-reduced to selenite (Se(IV)) as an intermediate product, and then to elemental selenium (Se ). Reduction kinetics could be described by the pseudo-first-order model. In particular, the influences of pH value and temperature on Se(VI) reduction by autohydrogentrophic organisms were examined. The high degradation rate was achieved at pH 7.0 to 8.0; and the best reduction temperature was between 25°C and 35°C. This study is of help for treating groundwater with selenium contamination by autohydrogenotrophic bacteria as well as its reactor development.

关键词： autohydrogenotrophic     selenate     hydrogen     groundwater    

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Nitrobenzene contamination of groundwater in a petrochemical industry site

Yongsheng Zhao, Lin Lin, Mei Hong

《环境科学与工程前沿（英文）》 2019年 第13卷 第2期 doi: 10.1007/s11783-019-1107-6

摘要：

The contaminant transport distance is predicted using numerical model.

Zero-valent iron can be used to effectively transform nitrobenzene to aniline.

Experiment shows that two-layer PRB systems have a very good treatment effect.

关键词： Nitrobenzene     Benzene     Groundwater     Zero-valent iron     Permeable reactive barrier    

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标题 作者 时间 类型 操作

Pilot study for the treatment of sodium and fluoride-contaminated groundwater by using high-pressure

Xiaomao WANG,Hongwei YANG,Zhenyu LI,Shaoxia YANG,Yuefeng XIE

期刊论文

Bioreduction of nitrate in groundwater using a pilot-scale hydrogen-based membrane biofilm reactor

Youneng TANG, Michal ZIV-EL, Chen ZHOU, Jung Hun SHIN, Chang Hoon AHN, Bruce E. RITTMANN, Kerry MEYER, Daniel CANDELARIA, David FRIESE, Ryan OVERSTREET, Rick SCOTT,

期刊论文

An emerging market for groundwater remediation in China: Policies, statistics, and future outlook

Deyi Hou, Guanghe Li, Paul Nathanail

期刊论文

Arsenic geochemistry of groundwater in Southeast Asia

Kyoung-Woong Kim, Penradee Chanpiwat, Hoang Thi Hanh, Kongkea Phan, Suthipong Sthiannopkao

期刊论文

Numerical simulation of benzene transport in shoreline groundwater affected by tides under different

期刊论文

Catalytic reduction for water treatment

Maocong Hu, Yin Liu, Zhenhua Yao, Liping Ma, Xianqin Wang

期刊论文

我国地下水污染防治现状与对策研究

任静,李娟,席北斗,杨洋,鹿豪杰,史俊祥

期刊论文

Optimization model analysis of centralized groundwater source heat pump system in heating season

Shilei LU,Yunfang QI,Zhe CAI,Yiran LI

期刊论文

Evaluation of groundwater quality in the Xinjiang Plain Area

Jinlong ZHOU, Xinguang DONG, Yiping WANG, Guomin LI, Xiaojing GUO,

期刊论文

Using hydrochemical signatures to characterize the long-period evolution of groundwater information in

期刊论文

Microbial responses to combined oxidation and catalysis treatment of 1,4-dioxane and co-contaminantsin groundwater and soil

Yu Miao, Nicholas W. Johnson, Kimberly Heck, Sujin Guo, Camilah D. Powell, Thien Phan, Phillip B. Gedalanga, David T. Adamson, Charles J. Newell, Michael S. Wong, Shaily Mahendra

期刊论文

地下水处理厂污泥合成磁性吸附剂吸附四环素的研究

曲展, 吴亚琼, 朱遂一, 于杨, 霍明昕, 张蕾蕾, 杨家宽, 边德军, 王艺

期刊论文

Assessing the impact on groundwater safety of inter-basin water transfer using a coupled modeling approach

Haifeng JIA,Shidong LIANG,Yansong ZHANG

期刊论文

Study on removing selenate from groundwater by autohydrogenotrophic microorganisms

Siqing XIA, Shuang SHEN, Jun LIANG, Xiaoyin XU

期刊论文

Nitrobenzene contamination of groundwater in a petrochemical industry site

Yongsheng Zhao, Lin Lin, Mei Hong

期刊论文