This paper evaluates the impact of the General Agreement on Tariffs and Trade's Agreement on Agriculture (GATT AA) on outcomes outlined as its sustainability goals. They include adopting and sustaining agricultural practices to lower fertilizer pollution from nitrogen and phosphate, as well as...

Ziel des Projektes war, gemeinsam mit land- und wasserwirtschaftlichen Behörden der Bundesländer ein bundesweit einheitliches, räumlich hochaufgelöstes Nährstoffmodell zu erstellen, um Informationsgrundlagen zu schaffen, welche unter anderem zur Erfüllung der Berichtspflichten der...

To extract phosphorus (P) and realize large-scale resource utilization of phosphate tailings, the hydrochloric acid leaching-precipitation method was employed. Namely, the P-rich fluorapatite in phosphate tailings was dissolved selectively, and then the calcium phosphates were precipitated from...

The extensive production and consumption of tributyl phosphate (TBP) pose a potential threat to the environment and human health. Many treatment techniques have been proposed for the removal of TBP from contaminated liquids. As an effective organic pollutant treatment technique, electrochemical...

To realize the high value-added utilization of phosphate tailings, hydrochloric acid leaching-chemical precipitation method was proposed to separate and recover phosphorus from phosphate tailings. Namely, the fluorapatite in phosphate tailings was leached selectively, and then the calcium...

Ziel des Projektes war, gemeinsam mit land- und wasserwirtschaftlichen Behörden der Bundesländer ein bundesweit einheitliches, räumlich hochaufgelöstes Nährstoffmodell zu erstellen, um Informationsgrundlagen zu schaffen, welche unter anderem zur Erfüllung der Berichtspflichten der...

Purple acid phosphatase (PAP) is an important plant acid phosphatase, which can secrete to the rhizosphere to decompose organophosphorus, promote phosphorus use efficiency and promote plant growth and development. However, little is known about the functions of intracellular PAP in plants,...

Understanding the effects of fertilization regime on the long-term accumulation, transformation, and bioavailability of phosphorus (P) in soil is essential to promote the development of sustainable management of soil P. Based on 29-year-field experiments in black soil, the compositions and...

Phosphorus (P) reacts with soil minerals making it less plant available. Considering that the Amazonian soils are chemically poor and have low pH, collectively these properties contribute to increasing the P limitation, either in the native forest and plantations for sustainable production....

The high concentration of fluoride and phosphate in phosphogypsum leachate is harmful to the environment and ecosystem. Thus, there is a need to develop feasible materials or technologies to remove both fluoride and phosphate in acidic phosphogypsum leachate. In this study, sulfoaluminate cement...

Herein, lanthanum carbonate hydroxide (La(CO3)OH)/Magnetite (Fe3O4) nanoparticles modified porous biochar (La/Fe-NBC) were prepared through molten salt pyrolysis-coprecipitation-hydrothermal method for further removal of phosphate in aqueous solution with various pH. La(CO3)OH functioned as...

A weak anion exchange resin (WAER) modified with Cu 2+ ions was prepared and its adsorption behavior for phosphate species in batch and column systems were examined. While pristine WAER adsorbed phosphate species by Bronsted acid-base interaction, the Cu-WAER captured phosphate species mainly...

The pollution of water ecosystems is a huge danger to all living organisms and, in particular, to human beings. The greatest threat is chemical pollution, which is tied with various substances penetrating of inorganic and organic origin in the water. Among such substances are selected...

Biogeochemical marine models aim to replicate the chemical and low-trophic levels conditions of marine ecosystems. There are many types of such models, depending on complexity, specific aims and formulations. All of them are but rough approximation of the real ecosystems with many shortcomings...

“Capitalism, Resistance, and Environment in Tunisia’s Gafsa Phosphate Mining Region, 1880s-1960s” combines archival and oral historical sources to narrate the social and environmental history of Tunisia’s largest mining zone, from the phosphate industry’s beginnings under French...

This paper considers how extractive industries can play a more constructive role in the development trajectories of small-island states despite a negative legacy of extraction. We consider the case of Nauru, a small Pacific island nation which historically had some of the world's finest...

This paper examines the effectiveness of command-and-control policies in the presence of incomplete and overlapping regulations. We study how recent bans on phosphate in household dishwasher detergent affect pollution loads to waterways, costs at wastewater treatment facilities, and consumer...

This case explores the geopolitical and human rights issues involved in the phosphate industry in Morocco. With an increasing global demand for phosphate, and the growing concentration of the industry in favor of Morocco, concerns over who controls the disputed territory of Western Sahara and...

The phenomenon of corrosion is of unsolicited importance, but its obviating agent-phosphating has more roles than of a mere preservation. Viz enhancement of lubricating properties for wiredrawing. The efficiencies need be studied, researched and monitored, for respective purpose(s). The modus...

Trans-Nzoia county covers an area 2,469.90 Km2 with a total Population of 818,757 (Male 50%, Female 50%) and a poverty index of 5.2% (KNBS, 2011). The main economic activities in Tran-Nzoia county include horticulture, large and small scale maize farming , wheat farming, Tea, Coffee and fish...

Die Dissertation leistet einen Beitrag zur interdisziplinären Phosphorforschung. Zunächst werden aus aktuellen Forschungsergebnissen die Eckpfeiler des nachhaltigen P-Managements abgeleitet. Sodann werden die für das P-Management relevanten Rechtsakte auf völker-, europa- und...

Identification of critical source areas (CSAs) helps to reduce best management practices (BMPs) adoption cost to meet the desired level of water quality in a given watershed. We used Soil and Water Assessment Tool (SWAT) to identify critical source areas within the Saline Bayou Watershed (HUC...

The aim of this study was to evaluate the impact of microbial phytase addition to laying hen diet on the balance of phosphorus, calcium, manganese and zinc. Phytase supplementation caused a decrease in phosphorus excretion by 8% in the group with low-phytase diet and 21% in the group with...

The world is facing a number of serious problems of which population rise, climate change, soil degradation, water scarcity and food security are among the most important. Aquaponics, as a closed loop system consisting of hydroponics and aquaculture elements, could contribute to addressing these...

This research estimates farm gate phosphorus balances and use efficiencies across 147 specialist dairy farms over a seven year period (2006-2012) using nationally representative data and the Republic of Ireland as a case study. This period coincides with the introduction of phosphorus controls...

The aim of this study was to evaluate the impact of microbial phytase addition to laying hen diet on the balance of phosphorus, calcium, manganese and zinc. Phytase supplementation caused a decrease in phosphorus excretion by 8% in the group with low-phytase diet and 21% in the group with...

Based on Western Sahara’s status as a non-self-governing territory and the rights of peoples in such territories over their natural resources, the article analyzes the Norwegian policy addressing Norwegian business enterprises operating in Western Sahara. In addition to relevant treaties and...

In 2010, a Total Maximum Daily Load (TMDL) was established for the Chesapeake Bay, defining the limits on emissions of nitrogen, phosphorus, and sediment necessary to reverse declines in the Bay’s quality and associated biological resources. Agriculture is the largest single source of...