Water Science and Technology: Water Supply
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Impacts of pH-dependent metal speciation on the decomposition of triclosan by sulfate radicals
Water Science and Technology: Water Supply - Tập 12 Số 6 - Trang 837-843 - 2012
The presence of triclosan (TCS) in water resources has drawn significant
attention due to its endocrine disruption potential. Sulfate radicals (SRs),
generated particularly by the metal-mediated activation of peroxymonosulfate
(PMS), have been proposed to effectively decompose TCS and many other
pharmaceuticals and personal care products. In spite of its significance for
understanding the efficien...
Antibiotics in groundwater under locations with high livestock density in Germany
Water Science and Technology: Water Supply - Tập 16 Số 5 - Trang 1361-1369 - 2016
Antibiotics are deployed in large quantities both in human and in veterinary
medicine. Studies show that antibiotic residues occur in the environment (e.g.
soil and surface waters). In some cases they were also detected in ground and
drinking water. However, the degree of groundwater pollution by antibiotic
residues from livestock farming is unknown. Therefore, the federal environment
agency (UBA)...
Oxidized fulvic acid adsorption on activated carbon
Water Science and Technology: Water Supply - Tập 14 Số 2 - Trang 238-245 - 2014
This study evaluates and compares the parameters of equilibrium adsorption from
aqueous solutions of river fulvic acids (FA) and peat fulvic acids. Compared to
peat FA, the river FA had lower biodegradable dissolved organic carbon (BDOC).
We observed a tendency for correlation between change of Gibbs free energy of
adsorption and BDOC value. A chlorination dose of 1.4 mg L−1 did not change FA
biod...
Rethinking urban areas: an example of an integrated blue-green approach
Water Science and Technology: Water Supply - Tập 13 Số 6 - Trang 1534-1542 - 2013
The provision of high quality urban water services, the assets of which are
often conceptualised as ‘blue infrastructure’, is essential for public health
and quality of life in the cities. On the other hand, parks, recreation grounds,
gardens, green roofs and in general ‘green infrastructure’, provide a range of
(urban) ecosystem services (including quality of life and aesthetics) and could
also b...
Coupled coordination of water resources–economy–ecosystem complex in the Henan section of the Yellow River basin
Water Science and Technology: Water Supply - Tập 22 Số 12 - Trang 8835-8848 - 2022
Abstract This study investigates the coordination of factors in the three
coupled systems of water resources, economy and ecosystem. The study data were
economic, social, environmental and water resource indicators of the Henan
section of the Yellow River basin from 2000 to 2019. Data were analyzed using a
model of coupling coordination, grey relational analysis and a combined sparrow
search algor...
Hydrogeochemical evolution under a changing environment: a case study in Jilin, China
Water Science and Technology: Water Supply - Tập 20 Số 5 - Trang 1653-1663 - 2020
Abstract Groundwater is an important component of the global water cycle, and
acts as a receptor and information carrier of global environmental changes.
Therefore, it is of great importance to research the chemical evolution of
groundwater under a changing environment. Historical data shows that groundwater
hydrochemical types are becoming more complicated, groundwater quality is
deteriorating an...
Impact of irrigation water scarcity on rural household food security and income in Pakistan
Water Science and Technology: Water Supply - Tập 16 Số 3 - Trang 675-683 - 2016
As Pakistan is currently facing a severe shortage of irrigation water, this
paper analyzes the determinants of water scarcity and its impact on the yield of
cereal crops (wheat, maize and rice), household income, food security and
poverty levels by employing the propensity-score-matching approach. This study
is based on a comprehensive set of cross-sectional data collected from 950
farmers from al...
Competitive mechanism of ammonia, iron and manganese for dissolved oxygen using pilot-scale biofilter at different dissolved oxygen concentrations
Water Science and Technology: Water Supply - Tập 16 Số 3 - Trang 766-774 - 2016
In this study, the competitive mechanism of ammonia, iron and manganese for
dissolved oxygen (DO) in a biofilter was investigated, and a new start-up method
of a biofilter for ammonia, iron and manganese removal was approved, which can
effectively shorten the start-up period from 3–4 months to 51 days. The results
demonstrated that when DO was sufficient (about 8 mg · L−1), ammonia, iron and
manga...
Natural organic matter fouling and chemical cleaning of nanofiltration membranes
Water Science and Technology: Water Supply - Tập 4 Số 5-6 - Trang 245-251 - 2004
Fouling and subsequent chemical cleaning are two important issues for
sustainable operation of nanofiltration (NF) membranes in water quality control
applications. Because fouling strongly depends on the feed water quality,
especially the ionic composition, chemical cleaning solutions should be chosen
to target the solution chemistry that is most responsible for the formation of a
compact, high re...
Burst detection and location in water distribution networks
Water Science and Technology: Water Supply - Tập 5 Số 3-4 - Trang 71-80 - 2005
An algorithm for the detection and location of sudden bursts in water
distribution networks combining both continuous monitoring of pressure and
hydraulic transient computation is presented. The approach is designed for
medium and large bursts that are the result of the sudden rupture of the pipe
wall or other physical element in the network and are accompanied by the
transient pressure wave that ...
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