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Waste water management

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https://www.readbyqxmd.com/read/28342340/cellulose-decomposition-and-larval-biomass-production-from-the-co-digestion-of-dairy-manure-and-chicken-manure-by-mini-livestock-hermetia-illucens-l
#1
Kashif Ur Rehman, Minmin Cai, Xiaopeng Xiao, Longyu Zheng, Hui Wang, Abdul Aziz Soomro, Yusha Zhou, Wu Li, Ziniu Yu, Jibin Zhang
World trends toward the modern dairies intensification on large production units cause massive animal manure production and accumulation. Improper handling of manure produced by industrial farm operation greatly deteriorates the major environmental media including air, water and soil. The black soldier fly utilizes organic waste and converts it into larvae biomass to be used as livestock feed and into residues to be used as bio-fertilizer. However, due to the high ratio of cellulose, hemicellulose and lignin in dairy manure, this conversion is difficult...
March 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28336335/management-of-spent-shea-waste-an-instrumental-characterization-and-valorization-in-clay-bricks-construction
#2
A N Adazabra, G Viruthagiri, N Shanmugam
This work studies the reuse of spent shea waste as an economic construction material in improving fired clay bricks manufacture aside providing a novel approach to ecofriendly managing its excessive generated from the shea agroindustry. For this purpose, the influence of spent shea waste addition on the chemical, mineralogical, molecular bonding and technological properties (i.e. compressive strength and water absorption) of the fired clay bricks were extensively investigated. The results indicated that the chemical, mineralogical, phase transformations, molecular bonding and thermal behavior of the produced bricks were practically unaffected by the addition of spent shea waste...
March 20, 2017: Waste Management
https://www.readbyqxmd.com/read/28334283/the-microbiology-of-oil-sands-tailings-past-present-future
#3
Julia M Foght, Lisa M Gieg, Tariq Siddique
Surface mining of enormous oil sands deposits in northeastern Alberta, Canada since 1967 has contributed greatly to Canada's economy but has also received negative international attention due largely to environmental concerns and challenges. Not only have microbes profoundly affected the composition and behaviour of this petroleum resource over geological time, they currently influence the management of semi-solid tailings in oil sands tailing ponds (OSTP) and tailings reclamation. Historically, microbial impacts on OSTP were generally discounted but next-generation sequencing and biogeochemical studies have revealed unexpectedly diverse indigenous communities and expanded our fundamental understanding of anaerobic microbial functions...
March 9, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28332819/a-path-to-impact-for-autonomous-field-deployable-chemical-sensors-a-case-study-of-in-situ-nitrite-sensors
#4
Tim M Schierenbeck, Matthew C Smith
Natural freshwater systems have been severely affected by excess loading of macronutrients (e.g., nitrogen and phosphorous) from fertilizers, fossil fuels, and human and livestock waste. In the USA, impacts to drinking water quality, biogeochemical cycles, and aquatic ecosystems are estimated to cost US$210 billion annually. Field-deployable nutrient sensors (FDS) offer potential to support research and resource management efforts by acquiring higher resolution data than are currently supported by expensive conventional sampling methods...
March 23, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28325591/global-scanning-of-antihistamines-in-the-environment-analysis-of-occurrence-and-hazards-in-aquatic-systems
#5
Lauren A Kristofco, Bryan W Brooks
Concentration of the global population is increasingly occurring in megacities and other developing regions, where access to medicines is increasing more rapidly than waste management systems are implemented. Because freshwater and coastal systems are influenced by wastewater effluent discharges of differential quality, exposures in aquatic systems must be considered. Here, we performed a global scanning assessment of antihistamines (AHs), a common class of medicines, in surface waters and effluents. Antihistamines were identified, literature occurrence and ecotoxicology data on AHs collated, therapeutic hazard values (THVs) calculated, and environmental exposure distributions (EEDs) of AHs compared to ecotoxicity thresholds and drug specific THVs to estimate hazards in surface waters and effluents...
March 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28316899/water-quality-assessment-in-the-german-river-of-the-years-2014-2015-how-a-case-study-on-the-impact-of-a-storm-water-sedimentation-basin-displayed-impairment-of-fish-health-in-the-argen-river-southern-germany
#6
Paul Thellmann, Bertram Kuch, Karl Wurm, Heinz-R Köhler, Rita Triebskorn
BACKGROUND: The present work investigates the impact of discharges from a storm water sedimentation basin (SSB) receiving runoff from a connected motorway in southern Germany. The study lasted for almost two years and was aimed at assessing the impact of the SSB on the fauna of the Argen River, which is a tributary of Lake Constance. Two sampling sites were examined up- and downstream of the SSB effluent. A combination of different diagnostic methods (fish embryo test with the zebrafish, histopathology, micronucleus test) was applied to investigate health impairment and genotoxic effects in indigenous fish as well as embryotoxic potentials in surface water and sediment samples of the Argen River, respectively, in samples of the SSB effluent...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28284129/biochar-produced-from-biosolids-using-a-single-mode-microwave-characterisation-and-its-potential-for-phosphorus-removal
#7
Elsa Antunes, James Schumann, Graham Brodie, Mohan V Jacob, Philip A Schneider
The amount of biosolids increases every year, and social and environmental concerns are also rising due to heavy metals and pathogen contamination. Even though biosolids are considered as a waste material, they could be used as a precursor in several applications, especially in agriculture due to the presence of essential nutrients. Microwave assisted pyrolysis (MWAP) is a promising technology to safely manage biosolids, while producing value-added products, such as biochar, that can be used to improve soil fertility...
March 8, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28279835/organic-wastes-as-soil-amendments-effects-assessment-towards-soil-invertebrates
#8
Mathieu Renaud, Sónia Chelinho, Paula Alvarenga, Clarisse Mourinha, Patrícia Palma, José Paulo Sousa, Tiago Natal-da-Luz
Using organic wastes, as soil amendments, is an important alternative to landfilling with benefits to soil structure, water retention, soil nutrient and organic matter concentrations. However, this practice should be monitored for its environmental risk due to the frequent presence, of noxious substances to soil organisms. To evaluate the potential of eight organic wastes with different origins, as soil amendments, reproduction tests with four soil invertebrate species (Folsomia candida, Enchytraeus crypticus, Hypoaspis aculeifer, Eisenia fetida) were performed using gradients of soil-waste mixtures...
February 1, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28275984/effects-of-human-induced-environmental-changes-on-benthic-macroinvertebrate-assemblages-of-wetlands-in-lake-tana-watershed-northwest-ethiopia
#9
Ayenew Gezie, Wassie Anteneh, Eshete Dejen, Seid Tiku Mereta
Wetlands of Lake Tana Watershed provide various ecological and socioeconomic functions. However, they are losing their vigor at alarming rate due to unwise management. Hence, there is an urgent need to monitor and assess these resources so as to identify the major drivers of its degradation and to provide information for management decisions. In this context, we aimed to assess the effects of human activities on macroinvertebrate assemblages of wetlands in Lake Tana Watershed. Biotic and abiotic data were collected from 46 sampling sites located in eight wetlands...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28263562/evaluation-of-externality-costs-in-life-cycle-optimization-of-municipal-solid-waste-management-systems
#10
Veronica Martinez-Sanchez, James W Levis, Anders Damgaard, Joseph F DeCarolis, Morton A Barlaz, Thomas F Astrup
The development of sustainable solid waste management (SWM) systems requires consideration of both economic and environmental impacts. Societal life-cycle costing (S-LCC) provides a quantitative framework to estimate both economic and environmental impacts, by including "budget costs" and "externality costs". Budget costs include market goods and services (economic impact), whereas externality costs include effects outside the economic system (e.g., environmental impact). This study demonstrates the applicability of S-LCC to SWM life-cycle optimization through a case study based on an average suburban U...
March 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28256808/farm-level-survey-of-spore-forming-bacteria-on-four-dairy-farms-in-the-waikato-region-of-new-zealand
#11
Tanushree B Gupta, Gale Brightwell
The aim of our study was to determine the occurrence and diversity of economically important spore-forming bacteria in New Zealand dairy farm systems. Farm dairy effluent (FDE) collected from Waikato dairy farms were tested for the presence of spore-forming bacteria, using a new culture-based methodology followed by genomic analysis. An enrichment step in which samples were inoculated in cooked meat glucose starch broth under anaerobic conditions, aided in the differential isolation of Bacillus and Clostridium species...
March 3, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28237596/the-effect-of-milk-feeding-method-and-hay-provision-on-the-development-of-feeding-behavior-and-non-nutritive-oral-behavior-of-dairy-calves
#12
K C Horvath, E K Miller-Cushon
We investigated the interactive effects of common feeding management factors on the development of feeding and non-nutritive oral behaviors in preweaned calves through the weaning transition. Calves were randomly assigned to 1 of 3 treatments that differed by milk-feeding method (teat or bucket) and ad libitum access to chopped timothy hay: control, milk provided by bucket and no access to hay (CON; n = 10); milk provided by bucket and access to hay (H; n = 10); milk provided via a teat and access to hay (TH; n = 10)...
February 22, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28214122/anaerobic-co-digestion-of-recalcitrant-agricultural-wastes-characterizing-of-biochemical-parameters-of-digestate-and-its-impacts-on-soil-ecosystem
#13
Adele Muscolo, Giovanna Settineri, Teresa Papalia, Emilio Attinà, Carmelo Basile, Maria Rosaria Panuccio
Anaerobic digestion (AD) of organic wastes is a promising alternative to landfilling for reducing Greenhouse Gas Emission (GHG) and it is encouraged by current regulation in Europe. Biogas-AD produced, represents a useful source of green energy, while its by-product (digestate) is a waste, that needs to be safely disposal. The sustainability of anaerobic digestion plants partly depends on the management of their digestion residues. This study has been focused on the environmental and economic benefits of co-digest recalcitrant agricultural wastes such olive wastes and citrus pulp, in combination with livestock wastes, straw and cheese whey for biogas production...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28207856/biodiesel-production-potential-from-fat-fraction-of-municipal-waste-in-makkah
#14
K Shahzad, A S Nizami, M Sagir, M Rehan, S Maier, M Z Khan, O K M Ouda, I M I Ismail, A O BaFail
In the Kingdom of Saudi Arabia (KSA), millions of Muslims come to perform Pilgrimage every year. Around one million ton of municipal solid waste (MSW) is generated in Makkah city annually. The collected MSW is disposed of in the landfills without any treatment or energy recovery. As a result, greenhouse gas (GHG) emissions and contamination of the soil and water bodies along with leachate and odors are occurring in waste disposal vicinities. The composition of MSW shows that food waste is the largest waste stream (up to 51%) of the total generated MSW...
2017: PloS One
https://www.readbyqxmd.com/read/28202275/restoring-rocky-intertidal-communities-lessons-from-a-benthic-macroalgal-ecosystem-engineer
#15
REVIEW
Alecia Bellgrove, Prudence F McKenzie, Hayley Cameron, Jacqueline B Pocklington
As coastal population growth increases globally, effective waste management practices are required to protect biodiversity. Water authorities are under increasing pressure to reduce the impact of sewage effluent discharged into the coastal environment and restore disturbed ecosystems. We review the role of benthic macroalgae as ecosystem engineers and focus particularly on the temperate Australasian fucoid Hormosira banksii as a case study for rocky intertidal restoration efforts. Research focussing on the roles of ecosystem engineers is lagging behind restoration research of ecosystem engineers...
February 12, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28199877/characterising-stormwater-gross-pollutants-captured-in-catch-basin-inserts
#16
Md Zahanggir Alam, A H M Faisal Anwar, Dipok Chandra Sarker, Anna Heitz, Craig Rothleitner
The accumulation of wash-off solid waste, termed gross pollutants (GPs), in drainage systems has become a major constraint for best management practices (BMPs) of stormwater. GPs should be captured at source before the material clogs the drainage network, seals the infiltration capacity of side entry pits or affects the aquatic life in receiving waters. BMPs intended to reduce stormwater pollutants include oil and grit separators, grassed swales, vegetated filter strips, retention ponds, and catch basin inserts (CBIs) are used to remove GP at the source and have no extra land use requirement because they are typically mounted within a catch basin (e...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28196756/amberstripe-scad-decapterus-muroadsi-carangidae-fish-ingest-blue-microplastics-resembling-their-copepod-prey-along-the-coast-of-rapa-nui-easter-island-in-the-south-pacific-subtropical-gyre
#17
Nicolas Christian Ory, Paula Sobral, Joana Lia Ferreira, Martin Thiel
An increasing number of studies have described the presence of microplastics (≤5mm) in many different fish species, raising ecological concerns. The factors influencing the ingestion of microplastics by fish remain unclear despite their importance to a better understanding of the routes of microplastics through marine food webs. Here, we compare microplastics and planktonic organisms in surface waters and as food items of 20 Amberstripe scads (Decapterus muroadsi) captured along the coast of Rapa Nui (Easter Island) to assess the hypothesis that fish ingest microplastics resembling their natural prey...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28183027/effect-of-biochars-produced-from-solid-organic-municipal-waste-on-soil-quality-parameters
#18
P Randolph, R R Bansode, O A Hassan, Dj Rehrah, R Ravella, M R Reddy, D W Watts, J M Novak, M Ahmedna
New value-added uses for solid municipal waste are needed for environmental and economic sustainability. Fortunately, value-added biochars can be produced from mixed solid waste, thereby addressing solid waste management issues, and enabling long-term carbon sequestration. We hypothesize that soil deficiencies can be remedied by the application of municipal waste-based biochars. Select municipal organic wastes (newspaper, cardboard, woodchips and landscaping residues) individually or in a 25% blend of all four waste streams were used as feedstocks of biochars...
February 6, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28177400/can-organic-materials-reduce-excess-nutrient-leaching-from-manure-rich-paddock-soils
#19
Mohammed Masud Parvage, Barbro Ulén, Holger Kirchmann
Horse paddocks have been identified as a significant contributor of animal waste nutrients to natural waters; thus, modified paddock management is needed. Because chemical amendments pose a health risk to horses, an alternative for reducing nutrient translocation from manure is to add available organic residues to the soil. To examine the feasibility of outdoor use of organic materials to reduce nutrient losses from paddock soils, three commonly available organic materials (peat, wheat straw, and wood chips) were tested for their nutrient retention capacities in batch experiments followed by leaching experiments in an in-house lysimeter station using artificial rainfall...
January 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28176865/nitrate-leaching-in-a-winter-wheat-summer-maize-rotation-on-a-calcareous-soil-as-affected-by-nitrogen-and-straw-management
#20
Tao Huang, Xiaotang Ju, Hao Yang
Nitrate leaching is one of the most important pathways of nitrogen (N) loss which leads to groundwater contamination or surface water eutrophication. Clarifying the rates, controlling factors and characteristics of nitrate leaching is the pre-requisite for proposing effective mitigation strategies. We investigated the effects of interactions among chemical N fertilizer, straw and manure applications on nitrogen leaching in an intensively managed calcareous Fluvo-aquic soil with winter wheat-summer maize cropping rotations on the North China Plain from October 2010 to September 2013 using ceramic suction cups and seepage water calculations based on a long-term field experiment...
February 8, 2017: Scientific Reports
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