Topic
Water environment
About: Water environment is a research topic. Over the lifetime, 13384 publications have been published within this topic receiving 125138 citations.
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Book•
31 May 2014
TL;DR: In this paper, the importance of the urban water environment is highlighted and the major problems urban water bodies face and strategies to safeguard the water environment are explored, and modelling approaches for factoring in climate change and future urban and transport scenarios are proposed.
Abstract: "This multi-disciplinary book provides practical solutions for safeguarding the sustainability of the urban water environment. Firstly, the importance of the urban water environment is highlighted and the major problems urban water bodies face and strategies to safeguard the water environment are explored. Secondly, the diversity of pollutants entering the water environment through stormwater runoff are discussed and modelling approaches for factoring in climate change and future urban and transport scenarios are proposed. Thirdly, by linking the concepts of sustainable urban ecosystems and sustainable urban and transport development, capabilities of two urban sustainability assessment models are demonstrated."--publisher website
41 citations
Patent•
22 Aug 2007
TL;DR: The stereo in-situ ecological urban water system repairing process tackles polluted water via quantitative analysis on the water as mentioned in this paper, which includes physical simulation and mathematic model analysis, microbe inoculation and culture, constituting refluxing ecological filter bed.
Abstract: The stereo in-situ ecological urban water system repairing process tackles polluted water via the quantitative analysis on the water The technological scheme includes physical simulation and mathematic model analysis, microbe inoculation and culture, constituting refluxing ecological filter bed, purification with biocarrier, artificial aeration, purifying upper water, pre-treatment in the blow down port, establishing water ecological system balance, perfecting water environment data, etc The present invention realizes the comprehensive tackling of urban water system
41 citations
TL;DR: In this article, the ability of honeycomb biomass (HC), a byproduct of the honey industry, to remove Pb, Cd, Cu, and Ni(II) ions from aqueous solutions was determined as a function of the solution pH, amount of biomass, contact time, and initial metal ion concentration.
Abstract: This paper examined the ability of honeycomb biomass (HC), a by-product of the honey industry, to remove Pb(II), Cd(II), Cu(II), and Ni(II) ions from aqueous solutions. The equilibrium adsorptive quantity was determined as a function of the solution pH, amount of biomass, contact time, and initial metal ion concentration in a batch biosorption technique. Biosorbent was characterized by Fourier transform infrared (FTIR), scanning electron microscopy with energy-dispersive X-ray, and X-ray diffraction studies. FTIR spectral analysis confirmed the coordination of metals with hydroxyl, carbonyl, and carboxyl functional groups present in the HC. The metals uptake by HC was rapid, and the equilibrium time was 40 min at constant temperature and pH. Sorption kinetics followed a nonlinear pseudo-second-order model. Isotherm experimental data were fitted to Langmuir, Freundlich, Dubinin–Radushkevich, and Temkin isotherm models in nonlinear forms. The mechanism of metal sorption by HC gave good fits for Langmuir model, and the affinity order of the biosorbent for four heavy metals was Pb(II)>Cd(II)>Cu(II)>Ni(II). The thermodynamic studies for the present biosorption process were performed by determining the values of ΔG°, ΔH°, and ΔS°, and it was observed that biosorption process is endothermic and spontaneous. This work provides an efficient and easily available environmental friendly honeycomb biomass as an attractive option for removing heavy metal ions from water and wastewater.
41 citations
TL;DR: In this paper, the connections between climate change and water are reviewed and it is suggested that climate change needs to be considered in three ways: mitigation, adaptation and baseline adaptation in river basin management plans (RBMPs).
Abstract: In, 2000 the European Parliament and the European Council passed the Water Framework Directive (WFD) to be implemented in all Member States. The consequence of the directive is that river basin management plans (RBMPs) shall be prepared which are legally subject to a strategic environmental assessment (SEA). An important environmental factor for the water sector is climate change, especially the changes it causes to the water environment. However, based on an argument of an inadequate knowledge base regarding climate change impacts, the prospect of Danish authorities including climate change in their SEAs of RBMPs is weak. In this paper the connections between climate change and water are reviewed. As a result, it is suggested that climate change needs to be considered in three ways: mitigation, adaptation and baseline adaptation.
41 citations
TL;DR: Wang et al. as mentioned in this paper investigated the historical changes of the burial efficiency (BE) of nitrogen and phosphorus in the sediment profile, and the contribution and driving mechanism of climate change and human activities to the BE of nitrogen in Dianchi Lake, China.
41 citations