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Waste water management

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https://www.readbyqxmd.com/read/29353805/sources-and-distribution-of-microplastics-in-china-s-largest-inland-lake-qinghai-lake
#1
Xiong Xiong, Kai Zhang, Xianchuan Chen, Huahong Shi, Ze Luo, Chenxi Wu
Microplastic pollution was studied in China's largest inland lake - Qinghai Lake in this work. Microplastics were detected with abundance varies from 0.05 × 105 to 7.58 × 105 items km-2 in the lake surface water, 0.03 × 105 to 0.31 × 105 items km-2 in the inflowing rivers, 50 to 1292 items m-2 in the lakeshore sediment, and 2 to 15 items per individual in the fish samples, respectively. Small microplastics (0.1-0.5 mm) dominated in the lake surface water while large microplastics (1-5 mm) are more abundant in the river samples...
January 17, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29352706/environmental-conditions-in-health-care-facilities-in-low-and-middle-income-countries-coverage-and-inequalities
#2
Ryan Cronk, Jamie Bartram
Safe environmental conditions and the availability of standard precaution items are important to prevent and treat infection in health care facilities (HCFs) and to achieve Sustainable Development Goal (SDG) targets for health and water, sanitation, and hygiene. Baseline coverage estimates for HCFs have yet to be formed for the SDGs; and there is little evidence describing inequalities in coverage. To address this, we produced the first coverage estimates of environmental conditions and standard precaution items in HCFs in low- and middle-income countries (LMICs); and explored factors associated with low coverage...
January 11, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29350216/the-nitrogen-footprint-tool-network-a-multi-institution-program-to-reduce-nitrogen-pollution
#3
Elizabeth A Castner, Allison M Leach, Neil Leary, Jill Baron, Jana E Compton, James N Galloway, Meredith G Hastings, Jacob Kimiecik, Jonathan Lantz-Trissel, Elizabeth de la Reguera, Rebecca Ryals
Anthropogenic sources of reactive nitrogen have local and global impacts on air and water quality and detrimental effects on human and ecosystem health. This article uses the Nitrogen Footprint Tool (NFT) to determine the amount of nitrogen (N) released as a result of institutional consumption. The sectors accounted for include food (consumption and upstream production), energy, transportation, fertilizer, research animals, and agricultural research. The NFT is then used for scenario analysis to manage and track reductions, which are driven by the consumption behaviors of both the institution itself and its constituent individuals...
April 1, 2017: Sustainability (New Rochelle)
https://www.readbyqxmd.com/read/29333852/synthesis-of-mip-nanoparticles-for-%C3%AE-casein-detection-using-spr-as-a-milk-allergen-sensor
#4
Jon Ashley, Yunus Shukor, Roberta D'Aurelio, Linda Trinh, Thomas Lawrence Rodgers, Jeff Temblay, Mike Pleasants, Ibtisam E Tothill
Food recalls due to undeclared allergens or contamination are costly to the food manufacturing industry worldwide. As the industry strives for better manufacturing efficiencies over a diverse range of food products, there is a need for the development of new analytical techniques to improve monitoring the presence of unintended food allergens during the food manufacturing process. In particular, the monitoring of wash samples from cleaning in place systems (CIP), used in the cleaning of food processing equipment, would allow for the effective removal of allergen containing ingredients in between food batches...
January 15, 2018: ACS Sensors
https://www.readbyqxmd.com/read/29317354/laccase-catalyzed-elimination-of-morphine-from-aqueous-systems
#5
Daniela Huber, Klaus Bleymaier, Alessandro Pellis, Robert Vielnascher, Andreas Daxbacher, Katrin J Greimel, Georg M Guebitz
Pharmaceuticals contaminate the environment for several reasons, including metabolic excretion after intake, industrial waste and improper disposal. The narcotic drug morphine is commonly utilized for chronic pain management, and the distribution of morphine in aqueous systems and in waste waters is of high concern. Here. the removal of morphine by a laccase from Myceliophthora thermophila both in its free form as well as immobilized on Accurel MP1000 beads was investigated. Complete morphine elimination was achieved within 30 min for the free and the immobilized enzyme (70% bound protein) for concentrations between 1 and 1,000 mg L-1 according to LC-TOF mass spectrometry analysis...
January 6, 2018: New Biotechnology
https://www.readbyqxmd.com/read/29309961/local-scale-water-food-nexus-use-of-borehole-garden-permaculture-to-realise-the-full-potential-of-rural-water-supplies-in-malawi
#6
Michael O Rivett, Alistair W Halcrow, Janine Schmalfuss, John A Stark, Jonathan P Truslove, Steve Kumwenda, Kettie A Harawa, Muthi Nhlema, Chrispine Songola, Gift J Wanangwa, Alexandra V M Miller, Robert M Kalin
Local-scale opportunities to address challenges of the water-food nexus in the developing world need to be embraced. Borehole-garden permaculture is advocated as one such opportunity that involves the sustainable use of groundwater spilt at hand-pump operated borehole supplies that is otherwise wasted. Spilt water may also pose health risks when accumulating as a stagnant pond. Rural village community use of this grey-water in permaculture projects to irrigate borehole gardens is proposed to primarily provide economic benefit whereby garden-produce revenue helps fund borehole water-point maintenance...
January 5, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29307073/study-of-marine-bacteria-inactivation-by-photochemical-processes-disinfection-kinetics-and-growth-modeling-after-treatment
#7
Javier Moreno-Andrés, Asunción Acevedo-Merino, Enrique Nebot
The importance of seawater treatment in order to avoid microbiological pollution related to aquaculture or ballast water management has increased during the last few years. Bacterial indicators used for the evaluation of different disinfection treatments are usually related with both waste and drinking water, these standards are not usual microorganisms found in seawater. Thus, it is thought necessary to study the behavior of different marine-specific organisms in regard to improve the disinfection processes in seawater...
January 6, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29306135/effect-of-bulking-agents-and-cow-dung-as-inoculant-on-vegetable-waste-compost-quality
#8
Nabam Rich, Ajay Bharti, Sunil Kumar
The source segregated vegetable waste (VW) was used as main feedstock and locally available organic wastes, such as water hyacinth (WH), garden prune (GP) and sawdust (SD) were used as bulking agents (BAs) to make the compost stable and mature in combination with cow dung (CD) as a source of inoculant. Three trials (T1, T2 & T3) were performed with a compost ratio of 6:3:1 (VW:BA:CD) using different BAs. The initial C/N ratio of all the trials was maintained lesser than 23 and composted for 30 days (7 days in rotary drum reactor + 23 days windrowing)...
December 26, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29289904/enhanced-removal-of-cr-vi-from-aqueous-solution-by-supported-zno-nanoparticles-on-biochar-derived-from-waste-water-hyacinth
#9
Jiangdong Yu, Chunyan Jiang, Qingqing Guan, Ping Ning, Junjie Gu, Qiuling Chen, Junmin Zhang, Rongrong Miao
Biochar derived from waste water hyacinth was prepared and modified by ZnO nanoparticles for Cr(VI) removal from aqueous solution with the aim of Cr(VI) removal and management of waste biomass. The effect of carbonization temperature (500-800 °C), ZnO content (10-50 wt%) loaded on biochar and contact time (0.17-14 h) on the Cr(VI) removal were investigated. It was found that higher than 95% removal efficiency of Cr(VI) can be achieved with the biochar loaded 30 wt% ZnO. The adsorption kinetics of the sorbent is consistent with the pseudo-second-order kinetic model and adsorption isotherm follows the Langmuir model with maximum adsorption capacity of 43...
December 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/29289283/the-presence-and-partitioning-behavior-of-flame-retardants-in-waste-leachate-and-air-particles-from-norwegian-waste-handling-facilities
#10
Nicolas A O Morin, Patrik L Andersson, Sarah E Hale, Hans Peter H Arp
Flame retardants in commercial products eventually make their way into the waste stream. Herein the presence of flame retardants in Norwegian landfills, incineration facilities and recycling sorting/defragmenting facilities is investigated. These facilities handled waste electrical and electronic equipment (WEEE), vehicles, digestate, glass, combustibles, bottom ash and fly ash. The flame retardants considered included polybrominated diphenyl ethers (∑BDE-10) as well as dechlorane plus, polybrominated biphenyls, hexabromobenzene, pentabromotoluene and pentabromoethylbenzene (collectively referred to as ∑FR-7)...
December 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29277081/acceptance-of-new-sanitation-the-role-of-end-users-pro-environmental-personal-norms-and-risk-and-benefit-perceptions
#11
P Marijn Poortvliet, Liese Sanders, Jan Weijma, Jasper R De Vries
Current sanitation systems are inherently limited in their ability to address the new challenges for (waste)water management that arise from the rising demand to restore resource cycles. These challenges include removal of micropollutants, water (re)use, and nutrient recovery. New opportunities to address these challenges arise from new sanitation, a system innovation that combines elements of source separation, local treatment and reuse, and less use of water. New sanitation is applied, but not yet widespread, in several residential areas in Europe...
December 18, 2017: Water Research
https://www.readbyqxmd.com/read/29273540/combined-disc-pelletisation-and-thermal-treatment-of-mswi-fly-ash
#12
Florian Huber, Hannes Herzel, Christian Adam, Ole Mallow, Dominik Blasenbauer, Johann Fellner
An environmentally friendly and cost efficient way for the management of municipal solid waste incineration (MSWI) fly ash represents its thermal co-treatment together with combustible waste. However, the safe introduction and storage of MSWI fly ash in the waste bunker is challenging and associated with severe problems (e.g. dust emissions, generation of undefined lumps and heat in case of moistened MSWI fly ash). Therefore, the aim of this study is to investigate the suitability of pelletisation as a pretreatment of MSWI fly ash...
December 20, 2017: Waste Management
https://www.readbyqxmd.com/read/29247861/prototype-apparatus-for-the-measurement-of-tritium-in-expired-air-using-plastic-scintillator-pellets
#13
Etsuko Furuta, Takeshi Ito
A new apparatus for measuring tritiated water in expired air was developed using plastic scintillator (PS) pellets and a low-background liquid scintillation counter. The sensitivity of the apparatus was sufficient when a large adapted Teflon vial was used. The measurement method generated low amounts of organic waste because the PS pellets were reusable by rinsing, and had adequate detection limits. The apparatus is useful for the safety management of workers that are exposed to radioactive materials.
December 7, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29245134/phosphorus-recovery-and-reuse-by-pyrolysis-applications-for-agriculture-and-environment
#14
REVIEW
Daquan Sun, Lauren Hale, Gourango Kar, Raju Soolanayakanahally, Sina Adl
Phosphorus ore extraction for soil fertilization supports the demand of modern agriculture, but extractable resource limitations, due to scarcity, impose a P reuse and recycling research agenda. Here we propose to integrate biochar production (pyrogenic carbon) with municipal and agricultural waste management systems, to recover and reuse phosphorous that would otherwise be lost from the ecological food web. A meta-analysis and available data on total P in biochar indicated that P-enriched feedstocks include animal manure, human excreta, and plant-biomass collected from P-polluted sites...
December 7, 2017: Chemosphere
https://www.readbyqxmd.com/read/29245133/source-identification-and-ecological-impact-evaluation-of-pahs-in-urban-river-sediments-a-case-study-in-taiwan
#15
Y T Tu, J H Ou, D C W Tsang, C D Dong, C W Chen, C M Kao
The Love River and Ho-Jin River, two major urban rivers in Kaohsiung City, Taiwan, are moderately to heavily polluted because different types of improperly treated wastewaters are discharged into the rivers. In this study, sediment and river water samples were collected from two rivers to investigate the river water quality and accumulation of polycyclic aromatic hydrocarbons (PAHs) in sediments. The spatial distribution, composition, and source appointment of PAHs of the sediments were examined. The impacts of PAHs on ecological system were assessed using toxic equivalence quotient (TEQ) of potentially carcinogenic PAHs (TEQcarc) and sediment quality guidelines...
December 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/29239573/urbanisation-and-its-effect-on-risk-factors-associated-with-childhood-diarrhoea-in-mbour-senegal-a-visualisation
#16
Sokhna Thiam, Samuel Fuhrimann, Aminata Niang-Diène, Ibrahima Sy, Ousmane Faye, Jürg Utzinger, Guéladio Cissé
Rapid urbanisation, particularly in secondary cities in Africa, brings along specific challenges for global health, including the prevention and control of infectious diseases such as diarrhoea. Our purpose was to visualise urbanisation trends and its effect on risk factors associated with childhood diarrhoea, e.g. water supply, sanitation, wastewater and solid waste management in Mbour, a secondary city in south-western Senegal. Our visualisation is facilitated by epidemiological and geographical surveys carried out in 2016...
November 27, 2017: Geospatial Health
https://www.readbyqxmd.com/read/29234706/adsorption-of-diclofenac-onto-different-biochar-microparticles-dataset-characterization-and-dosage-of-biochar
#17
Linson Lonappan, Tarek Rouissi, Satinder Kaur Brar, Mausam Verma, Rao Y Surampalli
Due to its wide occurrence in water resources and toxicity, pharmaceuticals and personal care products are becoming an emerging concern throughout the world. Application of residual/waste materials for water remediation can be a good strategy in waste management as well as in waste valorization. Herein, this dataset provides information on biochar application for the removal of emerging contaminant, diclofenac from water matrices. The data presented here is an extension of the research article explaining the mechanisms of adsorption diclofenac on biochars (Lonappan et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29229200/waste-based-alternative-adsorbents-for-the-remediation-of-pharmaceutical-contaminated-waters-has-a-step-forward-already-been-taken
#18
REVIEW
Carla Patrícia Silva, Guilaine Jaria, Marta Otero, Valdemar I Esteves, Vânia Calisto
When adsorption is considered for water treatment, commercial activated carbon is usually the chosen adsorbent for the removal of pollutants from the aqueous phase, particularly pharmaceuticals. In order to decrease costs and save natural resources, attempts have been made to use wastes as raw materials for the production of alternative carbon adsorbents. This approach intends to increase efficiency, cost-effectiveness, and also to propose an alternative and sustainable way for the valorization/management of residues...
December 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29227941/extractive-waste-management-a-risk-analysis-approach
#19
Neha Mehta, Giovanna Antonella Dino, Franco Ajmone-Marsan, Manuela Lasagna, Chiara Romè, Domenico Antonio De Luca
Abandoned mine sites continue to present serious environmental hazards because the heavy metals associated with extractive waste are continuously released into the environment, where they threaten human life and the environment. Remediating and securing extractive waste are complex, lengthy and costly processes. Thus, in most European countries, a site is considered for intervention when it poses a risk to human health and the surrounding environment. As a consequence, risk analysis presents a viable decisional approach towards the management of extractive waste...
December 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29225395/review-water-recovery-from-brines-and-salt-saturated-solutions-operability-and-thermodynamic-efficiency-considerations-for-desalination-technologies
#20
Leland M Vane
BACKGROUND: When water is recovered from a saline source, a brine concentrate stream is produced. Management of the brine stream can be problematic, particularly in inland regions. An alternative to brine disposal is recovery of water and possibly salts from the concentrate. RESULTS: This review provides an overview of desalination technologies and discusses the thermodynamic efficiencies and operational issues associated with the various technologies particularly with regard to high salinity streams...
March 8, 2017: Journal of Chemical Technology and Biotechnology
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