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Waste water management

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https://www.readbyqxmd.com/read/28526792/environmental-spread-of-ndm-1-producing-multi-drug-resistant-bacteria-in-dhaka-bangladesh
#1
Mohammad Aminul Islam, Moydul Islam, Rashedul Hasan, M Iqbal Hossain, Ashikun Nabi, Mahdia Rahman, Wil H F Goessens, Hubert P Endtz, Alexandria B Boehm, Shah M Faruque
Resistance to carbapenem antibiotics through the production of New Delhi Metallo-β-lactamase-1 (NDM-1) constitutes an emerging challenge in the treatment of bacterial infections. To monitor possible source of spread of these organisms in Dhaka, Bangladesh, we conducted comparative analysis of waste water samples from hospital adjacent areas (HAR) and from community areas (COM) as well as public tap water samples for the occurrence and characteristics of NDM-1 producing bacteria. Of 72 HAR samples tested 51 (71%) were positive for NDM-1-producing bacteria as evidenced by phenotypic tests and the presence of blaNDM-1 gene, compared to 5 of 41 (12...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28506258/health-care-waste-management-in-community-based-care-experiences-of-community-health-workers-in-low-resource-communities-in-south-africa
#2
Lydia Hangulu, Olagoke Akintola
BACKGROUND: In South Africa, community health workers (CHWs) working in community-based care (CBC) programmes provide care to patients most of whom are living with HIV/AIDS and tuberculosis (TB). Although studies have shown that the caregiving activities provided by the CHWs generate health care waste (HCW), there is limited information about the experiences of CHWs on health care waste management (HCWM) in CBC. This study explored HCWM in CBC in Durban, South Africa from the perspectives CHWs...
May 15, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28495227/lab-scale-co-digestion-of-kitchen-waste-and-brown-water-for-a-preliminary-performance-evaluation-of-a-decentralized-waste-and-wastewater-management
#3
Maria Cristina Lavagnolo, Francesca Girotto, Osamu Hirata, Raffaello Cossu
An overall interaction is manifested between wastewater and solid waste management schemes. At the Laboratory of Environmental Engineering (LISA) of the University of Padova, Italy, the scientific and technical implications of putting into practice a decentralized waste and wastewater treatment based on the separation of grey water, brown water (BW - faecal matter) and yellow water (YW - urine) are currently undergoing investigation in the Aquanova Project. An additional aim of this concept is the source segregation of kitchen waste (KW) for subsequent anaerobic co-digestion with BW...
May 8, 2017: Waste Management
https://www.readbyqxmd.com/read/28493156/mini-review-high-rate-algal-ponds-flexible-systems-for-sustainable-wastewater-treatment
#4
REVIEW
P Young, M Taylor, H J Fallowfield
Over the last 20 years, there has been a growing requirement by governments around the world for organisations to adopt more sustainable practices. Wastewater treatment is no exception, with many currently used systems requiring large capital investment, land area and power consumption. High rate algal ponds offer a sustainable, efficient and lower cost option to the systems currently in use. They are shallow, mixed lagoon based systems, which aim to maximise wastewater treatment by creating optimal conditions for algal growth and oxygen production-the key processes which remove nitrogen and organic waste in HRAP systems...
June 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28490945/sanitary-impact-evaluation-of-drinking-water-in-storage-reservoirs-in-moroccan-rural-area
#5
Faissal Aziz, Juan Parrado Rubio, Naaila Ouazzani, Mohammed Dary, Hamid Manyani, Bruno Rodríguez Morgado, Laila Mandi
In Morocco, storage reservoirs are particular systems of water supply in rural areas. These reservoirs are fed with rainwater and/or directly from the river, which are very contaminated by several pathogenic bacteria. They are used without any treatment as a drinking water by the surrounding population. In this context, the aim of this study is to evaluate the impact of consuming contaminated water stored in reservoirs on health status for six rural communities located in Assif El Mal, Southern East of Marrakech...
May 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28476960/synthetically-modified-nano-cellulose-for-the-removal-of-chromium-a-green-nanotech-perspective
#6
Priyanka Jain, Shilpa Varshney, Shalini Srivastava
Existing processes for the decontamination of heavy metals from water are found to be cost-prohibitive and energy-intensive which is totally against the sustainable concept of development. Green nanotechnology for water purification for ecosystem management, agricultural and industry is an emerging as leading global priority and occupies better position over the current state of water purification. Herein, the diafunctionalised polyaniline modified nanocellulose composite sorbent (PANI-NCC) has been used to introduce amine and imine functionalities for the removal of trivalent and hexavalent chromium from water bodies...
February 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28448911/adsorption-of-polar-organic-molecules-on-sediments-case-study-on-callovian-oxfordian-claystone
#7
S Rasamimanana, G Lefèvre, R V H Dagnelie
The release and transport of anthropogenic organic matter through the geosphere is often an environmental criterion of safety. Sedimentary rocks are widely studied in this context as geological barriers for waste management. It is the case of Callovian-Oxfordian claystone (COx), for which several studies report adsorption of anthropogenic organic molecules. In this study, we evaluated and reviewed adsorption data of polar organic molecules on COx claystone. Experiments were performed on raw claystone, decarbonated and clay fractions...
April 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28448168/management-of-textile-wastewater-for-improving-growth-and-yield-of-field-mustard-brassica-campestris-l
#8
Muhammad Yaseen, Muhammad Zahir Aziz, Aqleema Komal, Muhammad Naveed
Disposal of industrial wastewater is a current issue of urbanization. However, this problem can be sorted by using wastewater as alternate source of irrigation after the addition of some amendment. In this way, the problem of disposal of wastewater not only will be resolved but also scarcity of irrigation water can be kept off in future. Current research study was performed to evaluate the influence of different concentration of wastewater along with canal water for enhancing growth and yield of field mustard...
April 27, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28440929/marine-and-freshwater-microplastic-research-in-south-africa
#9
Carina Verster, Karin Minnaar, Hindrik Bouwman
South Africa has a vibrant plastics manufacturing industry, but recycling is limited and insufficient with a notable proportion of the unmanaged waste entering the environment. South Africa is a developing country with microplastics research in its inception. Very little is known about freshwater microplastics, and studies on South African marine microplastics are limited but actively being pursued. In a water-scarce country, protection of freshwater resources remains a priority, but in the face of other socioeconomic issues (poverty, unemployment, and HIV/AIDS), it receives insufficiently effective attention...
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28434612/tracking-nitrate-sources-in-groundwater-and-associated-health-risk-for-rural-communities-in-the-white-volta-river-basin-of-ghana-using-isotopic-approach-%C3%AE-15-n-%C3%AE-18-ono3-and-3-h
#10
Geophrey Anornu, Abass Gibrilla, Dickson Adomako
In this study, we present a first attempt on the use of integrated hydro-chemical and isotopic technique to trace the sources of groundwater nitrate contamination in the Upper East Region of Ghana to aid the sustainable management of this vital resource. The objectives of the study are (1) assess the present status and spatial distribution of the nitrate contamination (2) identify and distinguish the most likely sources of nitrate , (3) identify the relationship between (3)H and NO3(-) and F(-), and (4) ascertain the potential human risk from exposure to nitrate contamination...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28432993/chemical-biological-and-dna-markers-for-tracing-slaughterhouse-effluent
#11
P J Harvey, M P Taylor, H K Handley, S Foster, M R Gillings, A J Asher
Agricultural practices, if not managed correctly, can have a negative impact on receiving environments via waste disposal and discharge. In this study, a chicken slaughter facility on the rural outskirts of Sydney, Australia, has been identified as a possible source of persistent effluent discharge into a peri-urban catchment. Questions surrounding the facility's environmental management practices go back more than four decades. Despite there having never been a definitive determination of the facility's impact on local stream water quality, the New South Wales Environment Protection Authority (NSW EPA) has implemented numerous pollution reduction requirements to manage noise and water pollution at the slaughter facility...
April 19, 2017: Environmental Research
https://www.readbyqxmd.com/read/28431338/the-design-and-fabrication-of-beta-sensor-system-for-in-situ-diffusion-tests-in-mudstone-in-france
#12
Zhenhua Lin, Olivier Tillement, Marie-Genevieve Blanchin, Vivek Jindal, Agnès Vinsot, Romain V H Dagnelie, Virginie Blin, Yanick Lettry, Benoit Hautefeuille
Long term in situ diffusion experiments in the Callovian-Oxfordian mudstone (France) are designed in the context of nuclear waste management. β-emitters HTO and (36)Cl radiotracers are representative of neutral and anionic species in these experiments. Studies have been carried out to design an in situ beta monitoring system in order to quantify tracer migration in the rock pore water over time. The development, design and calibration of β-emitter radiation sensors were performed. An optimised geometry was calculated for the detection chamber of (36)Cl in solution (Ø×L=30×2mm(2)) via Monte-Carlo N-Particle transport simulation tools...
April 1, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28424958/effectiveness-of-waste-prevention-program-in-primary-students-schools
#13
Antonis A Zorpas, Irene Voukkali, Pantelitsa Loizia
Even though reducing waste is at the top of the waste hierarchy, no real decoupling between waste generation and consumption has been demonstrated. Several waste directives had been published from EU, but they have only brought minor changes within the key objective of reducing waste generation. Most efforts have been targeted towards greater amounts of recycling and better management of waste disposal. While these are necessary and socially beneficial goals, they are not adequate for the achievement of long-term sustainability goals...
April 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28414913/life-cycle-assessment-harmonization-and-soil-science-ranking-results-on-food-waste-management-methods
#14
Jeffrey Morris, Sally Brown, Matthew Cotton, H Scott Matthews
This study reviewed 147 life cycle studies, with 28 found suitable for harmonizing food waste management methods' climate and energy impacts. A total of 80 scientific soil productivity studies were assessed to rank management method soil benefits. Harmonized climate impacts per kilogram of food waste range from -0.20 kg of carbon dioxide equivalents (CO2e) for anaerobic digestion (AD) to 0.38 kg of CO2e for landfill gas-to-energy (LFGTE). Aerobic composting (AC) emits -0.10 kg of CO2e. In-sink grinding (ISG) via a food-waste disposer and flushing for management with other sewage at a wastewater treatment plant emits 0...
May 1, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28407003/assessment-of-the-implementation-of-community-led-total-sanitation-hygiene-and-associated-factors-in-diretiyara-district-eastern-ethiopia
#15
Roba Argaw Tessema
Based on the sustainable development goals, the United Nations plans to achieve equitable sanitation and hygiene for all and to end open defecation by 2030. In Ethiopia, 60% to 80% of health problems are due to communicable diseases attributable to unsafe water supply, unhygienic and unsanitary waste management, which are directly linked to the practice of open defecation. This study has aimed at assessing the implementation of community-led total sanitation and hygiene (CLTSH) and associated factors. A community-based cross-sectional study design involving 420 of the 7,225 households found in Diretiyara district was conducted in June 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28398534/filth-fly-activity-associated-with-composted-and-noncomposted-beef-cadavers-and-laboratory-studies-on-volatile-organic-compounds
#16
T R Dubie, J L Talley, J B Payne, A W Wayadande, J Dillwith, C Richards
Commercial livestock facilities are faced with the challenge of managing large amounts of waste including manure and animal mortalities. One method of disposing of dead animals is composting. The cadavers are enveloped in carbon material that creates a barrier between the dead tissue and the surrounding environment. Dead tissue can release materials that not only contaminate the soil but also the groundwater and nearby surface water. Animal cadaver composting is designed to facilitate decomposition without the aid of carrion-feeding insects and reduce the presence of common pathogens associated with animal waste and dead tissue...
April 8, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28390750/implementing-ecopharmacovigilance-epv-from-a-pharmacy-perspective-a-focus-on-non-steroidal-anti-inflammatory-drugs
#17
REVIEW
Jun Wang, Bingshu He, Dan Yan, Xiamin Hu
Environmental experts have made great efforts to control pharmaceutical pollution. However, the control of emerged environmental problems caused by medicines should draw more attention of pharmacy and pharmacovigilance researchers. Ecopharmacovigilance (EPV) as a kind of pharmacovigilance for the environment is recognized worldwide as crucial to minimize the environmental risk of pharmaceutical pollutants. But continuing to treat the pollution of pharmaceuticals as a group of substances instead of targeting individual pharmaceuticals on a prioritized basis will lead to a significant waste of resources...
April 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28386868/monitoring-for-a-specific-management-objective-protection-of-shorebird-foraging-habitat-adjacent-to-a-waste-water-treatment-plant
#18
Liz Morris, David Petch, David May, William K Steele
Intertidal invertebrates are often used in environmental monitoring programs as they are good indicators of water quality and an important food source for many species of fish and birds. We present data from a monitoring program where the primary aim is to report on the condition of the potential invertebrate prey abundance, biomass and diversity for migrating shorebirds on mudflats adjacent to a waste water treatment plant in a Ramsar listed wetland in Victoria, Australia. A key threat to the foraging habitat at this site has been assessed as a reduction in potential prey items as a result of the changes to the waste water treatment processes...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28377801/current-best-practice-in-the-management-of-patients-after-pituitary-surgery
#19
REVIEW
Alessandro Prete, Salvatore Maria Corsello, Roberto Salvatori
Sellar and parasellar masses are a common finding, and most of them are treated surgically via transsphenoidal approach. This type of surgery has revolutionized the approach to several hypothalamic-pituitary diseases and is usually effective, and well-tolerated by the patient. However, given the complex anatomy and high density of glandular, neurological and vascular structures in a confined space, transsphenoidal surgery harbors a substantial risk of complications. Hypopituitarism is one of the most frequent sequelae, with central adrenal insufficiency being the deficit that requires a timely diagnosis and treatment...
March 2017: Therapeutic Advances in Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28373560/contrasting-nitrogen-and-phosphorus-budgets-in-urban-watersheds-and-implications-for-managing-urban-water-pollution
#20
Sarah E Hobbie, Jacques C Finlay, Benjamin D Janke, Daniel A Nidzgorski, Dylan B Millet, Lawrence A Baker
Managing excess nutrients remains a major obstacle to improving ecosystem service benefits of urban waters. To inform more ecologically based landscape nutrient management, we compared watershed inputs, outputs, and retention for nitrogen (N) and phosphorus (P) in seven subwatersheds of the Mississippi River in St. Paul, Minnesota. Lawn fertilizer and pet waste dominated N and P inputs, respectively, underscoring the importance of household actions in influencing urban watershed nutrient budgets. Watersheds retained only 22% of net P inputs versus 80% of net N inputs (watershed area-weighted averages, where net inputs equal inputs minus biomass removal) despite relatively low P inputs...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
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