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https://www.readbyqxmd.com/read/28319901/a-novel-microbial-fuel-cell-sensor-with-biocathode-sensing-element
#1
Yong Jiang, Peng Liang, Panpan Liu, Donglin Wang, Bo Miao, Xia Huang
The traditional microbial fuel cell (MFC) sensor with bioanode as sensing element delivers limited sensitivity to toxicity monitoring, restricted application to only anaerobic and organic rich water body, and increased potential fault warning to the combined shock of organic matter/toxicity. In this study, the biocathode for oxygen reduction reaction was employed for the first time as the sensing element in MFC sensor for toxicity monitoring. The results shown that the sensitivity of MFC sensor with biocathode sensing element (7...
March 2, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28285214/domestic-wastewaters-reuse-reclaimed-by-an-improved-horizontal-subsurface-flow-constructed-wetland-a-case-study-in-the-southeast-of-spain
#2
Pedro Andreo-Martínez, Nuria García-Martínez, Joaquín Quesada-Medina, Luis Almela
The aim of this case study was to assess the performance of a horizontal subsurface flow constructed wetland (HF-CW) located in southeastern Spain, filled with blast furnace slags (BFS), planted with Phragmites australis and designed to treat artificially aerated domestic wastewater to produce effluents suitable for agriculture reuse. The water quality parameters, included in the Spanish regulations for reclaimed wastewater reuse as agricultural quality 2.1, were monitored for one year. Data for all studied parameters, except electrical conductivity (EC) and sodium adsorption ratio (SAR), met the Spanish standards for reclaimed wastewater reuse due to the high evapotranspiration (ET) during the summer...
February 28, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28278768/effects-of-waste-glass-and-waste-foundry-sand-additions-on-reclaimed-tiles-containing-sewage-sludge-ash
#3
Deng-Fong Lin, Huan-Lin Luo, Kuo-Liang Lin, Zhe-Kun Liu
Applying sewage sludge ash (SSA) to produce reclaimed tiles is a promising recycling technology in resolving the increasing sludge wastes from wastewater treatment. However, performance of such reclaimed tiles is inferior to that of original ceramic tiles. Many researchers have therefore tried adding various industrial by-products to improve reclaimed tile properties. In this study, multiple materials including waste glass and waste foundry sand (WFS) were added in an attempt to improve physical and mechanical properties of reclaimed tiles with SSA...
March 3, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28262313/high-performance-liquid-chromatography-mass-spectrometry-analysis-of-the-parent-drugs-and-their-metabolites-in-extracts-from-cress-lepidium-sativum-grown-hydroponically-in-water-containing-four-non-steroidal-anti-inflammatory-drugs
#4
Lisa Emhofer, Markus Himmelsbach, Wolfgang Buchberger, Christian W Klampfl
In this paper the metabolism of four non-steroidal anti-inflammatory drugs, (ketoprofen, mefenamic acid, naproxen, and diclofenac) by cress (Lepidium sativum) is described. Cress was cultivated hydroponically in water spiked with the parent drugs at levels ranging from 0.01mgL(-1) to 1mgL(-1). Employing an approach based on the analysis of the plant extracts by HPLC coupled either with quadrupole-time-of-flight mass spectrometry, or Orbitrap MS or triple quadrupole (QqQ) MS allowed the identification of twenty substances (sixteen metabolites and four parent drugs)...
March 31, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28259015/fungus-hyphae-supported-alumina-an-efficient-and-reclaimable-adsorbent-for-fluoride-removal-from-water
#5
Weichun Yang, Shunqi Tian, Qiongzhi Tang, Liyuan Chai, Haiying Wang
A reclaimable adsorbent of fungus hyphae-supported alumina (FHSA) bio-nanocomposites was developed, characterized and applied in fluoride removal from water. This adsorbent can be fast assembled and disassemble reversibly, promising efficient reclamation and high accessible surface area for fluoride adsorption. Adsorption experiments demonstrate that the FHSA performed well over a considerable wide pH range of 3-10 with high fluoride removal efficiencies (>66.3%). The adsorption capacity was 105.60mgg(-1) for FHSA, much higher than that for the alumina nanoparticles (50...
February 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28236821/effects-of-reclaimed-water-on-the-characteristics-of-dimethyl-phthalate-adsorption-on-sediments
#6
Zigong Ning, Pengxiang Li, Shuang Zhou, Yunkai Li, Munehide Ishiguro, Wei Zhao, Meie Wang
  Adsorptions of Dimethyl Phthalate (DMP) on three sediments in both reclaimed and ultrapure water were studied using the batch technique and the effects of reclaimed water on it were clarified. The data were interpreted by using Freundlich and Dubinin-Radushkviech models. The values of 1/n were among 0.207 to 0.766, showing the presence of multiple adsorption sites on sediments. Compared with the ultrapure water as the background solution, the adsorption capacities of sediments for DMP were reduced in case of reclaimed water due to the competition of substances in reclaimed water...
March 1, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28226246/improvement-of-virus-removal-by-pilot-scale-coagulation-ultrafiltration-process-for-wastewater-reclamation-effect-of-optimization-of-ph-in-secondary-effluent
#7
S Lee, M Ihara, N Yamashita, H Tanaka
Reclaimed water (i.e., reused advanced-treated wastewater) offers an alternative water resource. To reduce the health risks associated with its use, efficient virus removal such as with advanced wastewater treatment processes is important. Virus removal by coagulation followed by ultrafiltration (UF) for the treatment of drinking water has been well examined. But its efficacy in wastewater reclamation purpose using secondary treated effluent (SE) from wastewater treatment plant (WWTP) as feed water is unclear...
February 9, 2017: Water Research
https://www.readbyqxmd.com/read/28185729/application-of-ozonation-for-pharmaceuticals-and-personal-care-products-removal-from-water
#8
REVIEW
João Gomes, Raquel Costa, Rosa M Quinta-Ferreira, Rui C Martins
Due to the shortening on natural water resources, reclaimed wastewater will be an important water supply source. However, suitable technologies must be available to guaranty its proper detoxification with special concern for the emerging pharmaceutical and personal care products that are continuously reaching municipal wastewater treatment plants. While conventional biological systems are not suitable to remove these compounds, ozone, due to its interesting features involving molecular ozone oxidation and the possibility of generating unselective hydroxyl radicals, has a wider range of action on micropollutants removal and water disinfection...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28181800/vanadium-geochemistry-of-oil-sands-fluid-petroleum-coke
#9
Jake A Nesbitt, Matthew B J Lindsay
Vanadium has previously been linked to elevated toxicity of leachates derived from oil sands petroleum coke. However, geochemical controls on V mobility within coke deposits remain poorly constrained. Detailed examinations of porewater and solid-phase V geochemistry were therefore performed on oil sands fluid petroleum coke deposits in Alberta, Canada. Sample collection focused on both active and reclaimed deposits, which contained more than 3 × 10(7) m(3) of fluid petroleum coke. Dissolved V concentrations were highest (up to 3...
February 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28146157/identification-of-circo-like-virus-brazil-genomic-sequences-in-raw-sewage-from-the-metropolitan-area-of-s%C3%A3-o-paulo-evidence-of-circulation-two-and-three-years-after-the-first-detection
#10
Silvana Beres Castrignano, Teresa Keico Nagasse-Sugahara, Patrícia Garrafa, Telma Alves Monezi, Karina Medici Barrella, Dolores Ursula Mehnert
BACKGROUND: Two novel viruses named circo-like virus-Brazil (CLV-BR) hs1 and hs2 were previously discovered in a Brazilian human fecal sample through metagenomics. CLV-BR hs1 and hs2 possess a small circular DNA genome encoding a replication initiator protein (Rep), and the two genomes exhibit 92% nucleotide identity with each other. Phylogenetic analysis based on the Rep protein showed that CLV-BRs do not cluster with circoviruses, nanoviruses, geminiviruses or cycloviruses. OBJECTIVE: The aim of this study was to search for CLV-BR genomes in sewage and reclaimed water samples from the metropolitan area of São Paulo, Brazil, to verify whether the first detection of these viruses was an isolated finding...
March 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28139323/photosynthesis-and-aboveground-carbon-allocation-of-two-co-occurring-poplar-species-in-an-urban-brownfield
#11
Diane Radwanski, Frank Gallagher, Dirk W Vanderklein, Karina V R Schäfer
Phytoremediation, a technique used to reclaim heavy metal-contaminated soils, requires an understanding of plant physiological responses to heavy metals. However, the majority of studies documenting heavy metal impact on plant functioning have been performed in laboratory or greenhouse settings. We predicted that increased soil heavy metal concentrations reduce photosynthesis and biomass production in trees growing in metal contaminated soil in a naturally re-vegetated urban brownfield. Leaf gas exchange, leaf carbon and nitrogen concentration, and tree biomass were recorded and compared for Populus deltoides and Populus tremuloides growing in an urban brownfield...
April 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28129907/effects-of-residual-disinfectant-on-soil-and-lettuce-crop-irrigated-with-chlorinated-water
#12
A Lonigro, N Montemurro, G Laera
The accidental or continuous release of residual chlorine in water reclaimed for irrigational purposes could compromise the crop yield and increase the load of toxic organo-halogenated compounds, posing additional risks for environment and human health. This study was aimed at assessing the consequences of using chlorinated water for irrigating lettuce crops grown in pots with two different types of soil. The results show that the accumulation of extractable organo-halogenated compounds (EOX) in soil, roots and leaves is directly related to the chlorine concentration in the irrigation water...
April 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28128021/drug-product-immobilization-in-recycled-polyethylene-polypropylene-reclaimed-from-municipal-solid-waste-experimental-and-numerical-assessment
#13
Walid Saad, Wael Slika, Zara Mawla, George Saad
Recently, there has been a growing interest in identifying suitable routes for the disposal of pharmaceutical wastes. This study investigates the potential of matrix materials composed of recycled polyethylene/polypropylene reclaimed from municipal solid wastes at immobilizing pharmaceutical solid wastes. Diclofenac (DF) drug product was embedded in boards of recycled plastic material, and leaching in water was assessed at various temperatures. DF concentrations were determined by high-performance liquid chromatography and revealed a maximum leachable fraction of 4% under accelerated conditions of 70°C, and less than 0...
February 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28117165/methane-emissions-dynamics-from-a-constructed-fen-and-reference-sites-in-the-athabasca-oil-sands-region-alberta
#14
Kimberley R Murray, Natasha Barlow, Maria Strack
Recently, fen construction projects on surface mines in northeastern Alberta have been attempted as a reclamation strategy to reintroduce peatlands into the region where industry disturbs a substantial amount of wetland ecosystems. Knowledge of carbon cycling and greenhouse gas (GHG) dynamics, including methane (CH4), is one way to understand the biogeochemical function of newly constructed fen ecosystems. In this study we monitored CH4 emissions and CH4 pore water concentration, as well as ecological and soil chemistry controls on CH4 emissions and pore water concentration, from a constructed fen...
January 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28110257/acidification-with-nitric-acid-improves-chemical-characteristics-and-reduces-phytotoxicity-of-alkaline-chars
#15
Fernando Fornes, Rosa Maria Belda
Charred organic matter is recently receiving attention for its potential use as soilless growth medium. However, depending on its origin and on the manufacturing technology, it can result toxic for plants. This fact implies that a detoxifying treatment ought to be devised in order to reclaim char in this way. We have studied three materials which combine these factors: two pyrolyzed biochars, one from forest waste (BCH-FW) and another from olive mill waste (BCH-OMW), and one hydrothermally carbonized hydrochar from forest waste (HYD-FW)...
January 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28092761/chlorinated-and-ultraviolet-radiation-treated-reclaimed-irrigation-water-is-the-source-of-aeromonas-found-in-vegetables-used-for-human-consumption
#16
Fadua Latif-Eugenín, Roxana Beaz-Hidalgo, Carolina Silvera-Simón, Xavi Fernandez-Cassi, María J Figueras
Wastewater is increasingly being recognized as a key water resource, and reclaimed water (or treated wastewater) is used for irrigating vegetables destined for human consumption. The aim of the present study was to determine the diversity and prevalence of Aeromonas spp. both in reclaimed water used for irrigation and in the three types of vegetables irrigated with that water. Seven of the 11 (63.6%) samples of reclaimed water and all samples of vegetables were positive for the presence of Aeromonas. A total of 216 Aeromonas isolates were genotyped and corresponded to 132 different strains that after identification by sequencing the rpoD gene belonged to 10 different species...
April 2017: Environmental Research
https://www.readbyqxmd.com/read/28091988/genotoxicity-and-cytotoxicity-reduction-of-the-polluted-urban-river-after-ecological-restoration-a-field-scale-study-of-jialu-river-in-northern-china
#17
Jie Sun, Rui Zhang, Long Qin, Haixiao Zhu, Yu Huang, Yingang Xue, Shuqing An, Xianchuan Xie, Aimin Li
To further treat the reclaimed municipal wastewater and rehabilitate the aquatic ecosystem of polluted urban rivers, an 18.5-km field-scale ecological restoration project was constructed along Jialu River, a polluted urban river which receives only reclaimed municipal wastewater from Zhengzhou City without natural upland water dilution. This study investigated the potential efficiency of water quality improvement, as well as genotoxicity and cytotoxicity reduction along the ecological restoration project of this polluted urban river...
January 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28076659/an-empirical-agent-based-model-to-simulate-the-adoption-of-water-reuse-using-the-social-amplification-of-risk-framework
#18
Venu Kandiah, Andrew R Binder, Emily Z Berglund
Water reuse can serve as a sustainable alternative water source for urban areas. However, the successful implementation of large-scale water reuse projects depends on community acceptance. Because of the negative perceptions that are traditionally associated with reclaimed water, water reuse is often not considered in the development of urban water management plans. This study develops a simulation model for understanding community opinion dynamics surrounding the issue of water reuse, and how individual perceptions evolve within that context, which can help in the planning and decision-making process...
January 11, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28034436/characteristics-of-change-in-water-quality-along-reclaimed-water-intake-area-of-the-chaobai-river-in-beijing-china
#19
Lei Yang, Jiangtao He, Yumei Liu, Jian Wang, Lie Jiang, Guangcai Wang
To reveal the basic characteristics and controlling factors of water quality change in the project Wenyu to Chaobai reclaimed water diversion, the water quality in the study area was monitored for one year at seven monitoring sites. Inverse geochemical models of the statistical groups were developed using PHREEQC to elucidate the hydrochemistry characteristics of reclaimed water and the factors. The monitoring results indicated that nitrogen and phosphorus contents were significantly reduced along the river mainly caused by seasonal and location variation...
December 2016: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28018984/application-of-the-weps-and-sweep-models-to-non-agricultural-disturbed-lands
#20
J Tatarko, S J van Donk, J C Ascough, D G Walker
Wind erosion not only affects agricultural productivity but also soil, air, and water quality. Dust and specifically particulate matter ≤10 μm (PM-10) has adverse effects on respiratory health and also reduces visibility along roadways, resulting in auto accidents. The Wind Erosion Prediction System (WEPS) was developed by the USDA-Agricultural Research Service to simulate wind erosion and provide for conservation planning on cultivated agricultural lands. A companion product, known as the Single-Event Wind Erosion Evaluation Program (SWEEP), has also been developed which consists of the stand-alone WEPS erosion submodel combined with a graphical interface to simulate soil loss from single (i...
December 2016: Heliyon
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