scholarly journals Environmental Impacts to Surface Water from Confined and Grass-Based Dairy Farms

2021 ◽  
Author(s):  
Aoze Li ◽  
Jiahui Zhu
Keyword(s):  
Surface Water ◽  
Waste Management ◽  
Environmental Impacts ◽  
Northern Hemisphere ◽  
Water Environment ◽  
Dairy Farms ◽  
Phosphorus Runoff ◽  
North Latitude

Abstract There is little research on the effects of confined dairy farms and grass-based dairy farms on the surrounding surface water environment. This study was conducted through sampling and analysis of seven dairy farms in the Northern Hemisphere, especially between 38-degree to 45-degree north latitude. The correlation between the effect of confined dairy farms and grass-based dairy farms on the surrounding surface water (mainly Phosphorus runoff and Nitrogen precipitation) and pasture scale and waste management were obtained.

scholarly journals Introducing a Degrowth Approach to the Circular Economy Policies of Food Production, and Food Loss and Waste Management: Towards a Circular Bioeconomy

2021 ◽  
Vol 13 (6) ◽  
pp. 3379 ◽  
Author(s):  
Daniel Hoehn ◽  
Jara Laso ◽  
María Margallo ◽  
Israel Ruiz-Salmón ◽  
Francisco José Amo-Setién ◽  
...  
Keyword(s):  
Waste Management ◽  
Environmental Impacts ◽  
Environmental Sustainability ◽  
Circular Economy ◽  
Food Production ◽  
The Sustainable Development ◽  
Food Loss ◽  
Use Of Resources ◽  
Assessment Approach ◽  
New Policies

There is a growing debate surrounding the contradiction between an unremitting increase in the use of resources and the search for environmental sustainability. Therefore, the concept of sustainable degrowth is emerging aiming to introduce in our societies new social values and new policies, capable of satisfying human requirements whilst reducing environmental impacts and consumption of resources. In this framework, circular economy strategies for food production and food loss and waste management systems, following the Sustainable Development Goals agenda, are being developed based on a search for circularity, but without setting limits to the continual increase in environmental impacts and resource use. This work presents a methodology for determining the percentage of degrowth needed in any food supply chain, by analyzing four scenarios in a life cycle assessment approach over time between 2020 and 2040. Results for the Spanish case study suggested a degrowth need of 26.8% in 2015 and 58.9% in 2040 in order to achieve compliance with the Paris Agreement targets, highlighting the reduction of meat and fish and seafood consumption as the most useful path.

Environmental impact and treatment of hydraulic fracturing in shale gas

2021 ◽  
Author(s):  
Heng Wang ◽  
Lifa Zhou
Keyword(s):  
Surface Water ◽  
High Risk ◽  
Water Resources ◽  
Hydraulic Fracturing ◽  
Environmental Impacts ◽  
Shale Gas ◽  
Pollution Sources ◽  
Fracturing Fluid ◽  
Geological Disasters ◽  
Surface Water And Groundwater

<p>Hydraulic fracturing is one of the key technologies to stimulate shale gas production and may have some environmental impacts while enhancing shale gas development. Through the introduction of hydraulic fracturing technology from the design and construction aspects, analysis of its potential adverse environmental impacts in water resource consumption, surface water and groundwater pollution, geological disasters, and other aspects, and based on the existing problems to form targeted solutions.</p><p>According to EIA report, during the stimulation process of shale gas fracturing, the amount of water resources is about 10,000m<sup>3</sup>, of which 20%-80% can be returned, and the flowback rate of Shale gas in China is 20%-60%, which means that at least 20%-40% polluted water containing various chemical raw materials will be hidden in the formation for a long time. The shale flowback rate in China is significantly lower than that in the United States, not only due to formation conditions, but also due to equipment and technology. In view of this situation, it is necessary to control the whole process from design to construction.</p><p>In the design process of hydraulic fracturing of shale gas, real-time control of the fracture range is carried out in conjunction with seismic monitoring and software simulation fitting, so as to reduce the consumption of water resources on the premise of achieving the purpose of increasing production. Especially, to reducing the fracturing program as much as possible in the water-scarce areas, so as to ensure the security of public water resources. Reduce the use of chemical additives to alleviate the pollution of surface water and groundwater. After detection of possible pollution, determine the amount of pollution sources on site and carry out comprehensive pollutant recovery and treatment. Strictly prohibit high-risk pollution sources from entering the fracturing fluid process. At the same time, the fracturing fluid is used to recycled and purified. In terms of geological disasters caused by fracturing, high-risk geological disaster zones should be identified and monitored in advance to prevent large-scale geological activities caused by micro-earthquakes caused by fracturing from causing uncontrollable geological disasters.</p>

Surface Water Quality Assessment in Main Stream of Liaohe River

2013 ◽  
Vol 788 ◽  
pp. 354-358
Author(s):  
Hui Wang ◽  
Li Na Sun ◽  
Pan Du
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Quality Assessment ◽  
Membership Function ◽  
Water Environment ◽  
Surface Water Quality ◽  
Water Quality Assessment ◽  
Monitoring Station ◽  
Main Stream ◽  
Liaohe River

The objective of this research was to study the surface water quality and evolution of surface water environment in Liaohe River main stream. Results showed that the surface water quality was declining along main stream. It was better in flood reason than others. It was best in Defudian monitoring station and worst in Shuguangdaqiao monitoring station. This research would significantly improve the understanding of the evolution of surface water environment in Liaohe River main stream.Keywords: water quality assessment; Liaohe River; membership function

scholarly journals Wastewater treatment in submerged aerated biofilter under condition of high ammonium concentration

2017 ◽  
Vol 24 (3) ◽  
pp. 431-442 ◽  
Author(s):  
Katarzyna Pawęska ◽  
Aleksandra Bawiec ◽  
Krzysztof Pulikowski
Keyword(s):  
Surface Water ◽  
Biological Membrane ◽  
Water Environment ◽  
Membrane System ◽  
Ammonia Nitrogen ◽  
Ammonium Concentration ◽  
Service Areas ◽  
Biogenic Compounds ◽  
Low Efficiency ◽  
Favorable Conditions

Abstract Treatment of wastewater produced in Service Areas (SA) located on expressways and highways is a worldwide problem because of increasing amount of roads and specific composition of those kinds of sewage. Insufficient removal of pollutants from wastewater discharged into surface water may cause serious environmental problems. In the present study efficiency of treatment of wastewater with high ammonium concentration in biological membrane system used on SA was investigated. Concentrations of ammonia nitrogen in wastewater flowing into bioreactor in none of the tested objects did not fall below 99.0 mg of N-NH4·dm−3. Because of high ammonium content in sewage and high pH reaching value about 9, it is almost impossible to create favorable conditions for microorganisms that run purification processes resulting in low efficiency of phosphorus and nitrogen removal (reduction of biogenic compounds did not exceed 15%). Treatment of wastewater consisting mainly of urine with commonly used biological membrane technology has to be widely tested to perform suitable quality of discharged wastewater, to provide safety of surface water environment.

Valorisation of fish by-products against waste management treatments – Comparison of environmental impacts

2015 ◽  
Vol 46 ◽  
pp. 103-112 ◽  
Author(s):  
Carla Lopes ◽  
Luis T. Antelo ◽  
Amaya Franco-Uría ◽  
Antonio A. Alonso ◽  
Ricardo Pérez-Martín
Keyword(s):  
Waste Management ◽  
Environmental Impacts ◽  
By Products

scholarly journals Sustainability assessment and environmental impacts of water supply systems: a case study in Tampa Bay water supply system

2021 ◽  
Vol 308 ◽  
pp. 01010
Author(s):  
Shen Yizhi ◽  
Wei Minrui ◽  
Hou Bowen
Keyword(s):  
Energy Consumption ◽  
Surface Water ◽  
Water Supply ◽  
Environmental Impacts ◽  
Carbon Dioxide Emissions ◽  
Public Awareness ◽  
Tampa Bay ◽  
Water Supply Systems ◽  
Supply Systems

Due to the accelerated industrial and urbanization development, climate change, and increasing populations and life quality expectations, the issue of drinking water shortage has raised much public awareness. The desalination system has been widely applied to accommodate the growing demand for clean water resources despite the continuous concerns about its relatively higher energy consumption and environmental footprints. This research conducted a case study in the Tampa Bay Regional Surface Water Treatment Plant and Tampa Bay Seawater Desalination Plant in Florida, U.S. It analysed the performance and environmental impacts of conventional and desalination water supply systems on three sides: energy consumption, carbon footprint, and solid waste. Potential negative effects of both water supply systems are generally associated with surface water ecology, groundwater aquifers, coastal environment, and marine organisms. Various environmental impact mitigation plans have been proposed to prevent or restore the detriments caused by carbon dioxide emissions, plant construction, and concentrated brine discharge. Due to the deficiency in freshwater resources, desalination technology is more promising through proper regulations and regional sustainable development.

Welfare intervention and environmental impacts of milk production – cradle-to-farm-gate effects of implementing rubber mats in Austrian dairy farms

2020 ◽  
Vol 277 ◽  
pp. 123953
Author(s):  
Anna Herzog ◽  
Stefan Hörtenhuber ◽  
Christoph Winckler ◽  
Iris Kral ◽  
Werner Zollitsch
Keyword(s):  
Environmental Impacts ◽  
Milk Production ◽  
Dairy Farms
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