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This paper presents a review on significant parameters and techniques in water quality assessments used for drinking, domestic purposes and recreational purposes. To ensure water in good quality there are several parameters that have to be considered. Water quality index (WQI) is one of the most effective tools to an attempt to ascertain the water quality. There are many techniques on water quality...
In this paper, a new classification method for production water is proposed, based on so real-time measured parameters. The classification method consists of three steps: 1) An initial classification of the Water Quality Index is computed using the method proposed by KUMAR; 2) Feature selection based on random forest (specifically based on the method varSelRF); and 3) Training of classifiers using...
The U.S. Integrated Ocean Observing System (U.S. IOOS) is an end-to-end integrated and operational System of Systems aimed at providing oceanographic and meteorological data and products to a variety of stakeholders. Using the vision of U.S. IOOS for coastal ocean observing, the Gulf of Mexico Coastal Ocean Observing System (GCOOS) Regional Association has begun a pilot project to build an integrated...
Geospatial technique, statistical analysis and in-situ sampling were coupled to explore the relationship between landscape patterns measured at both landscape and class level influence water quality in the 21 headwater sub-watershed within the Jiulong River watershed, Southeast China. The results show that water quality parameters selected are closely associated with both composition of land use types...
According to the fact that environmental pollution and its degree belongs to fuzzy concept, this paper establishes a water quality evaluation model based on fuzzy pattern recognition theory. The ten monitoring sections of Qiantang River are sampled to carrying out water quality evaluation research. The evaluation index takes total phosphorus (TP), chemical oxygen demand (COD), ammonia nitrogen (NH...
Impervious surface areas (ISA) play an important role in determining the water quality of the receiving waters. Remote Sensing, Geographical Information System, and multiple regression techniques were coupled in this study to detect the impervious surface area dynamics over the last 20 years and the linkage between ISA and Chemical permanganate index (CODMn), Ammonia (NH4+-N), and total phosphorus...
Urban lakes locate in city area or non-agricultural towns, which are very important to city ecosystem and habitation environment. In this paper, nine lakes of Nanjing city (Huashen Lake, Baijia Lake, Yueya Lake, Mochou Lake, Nanhu Lake, Pipa Lake, Qianhu Lake, Zixia Lake, and Xuanwu Lake) were selected and water samples were collected seasonally, so as to analyze water quality and trophic status....
In this study, in consideration for water quality and quantity factors, groundwater resources assessment indicators were presented, the evaluation grade classification and standards were developed. In order to deal with fuzziness, conflict and uncertainty existing in the process of groundwater resources evaluation, a new assessment model — the fuzzy matter-element model is proposed based on the theory...
The pollutants, which were brought by the living and producing of the village in Lake Baiyangdian, would have some effects on surrounding water quality. During May 2009 to March 2010, the research evaluated and analyzed the eutrophication state of five selected sampling points. Experimental result indicated that, the water around the village appeared eutrophication phenomenon overall, fish and poultry...
This project has researched combined technology of the transformation from bathing wastewater to drinking water, then developed the removable military equipment in small volume. Turbidity, CODMn and coliform group removal rate is separately 99.5%, 92% and 100% via the process combined of Coagulation-Sedimentation-quartz sand filtration-activated carbon adsorption-Ultrafiltration-ozone disinfection,...
The study on groundwater vulnerability is an effective technical measure for rational development and protection of groundwater resource. In the paper, according to the hydrogeology conditions of the Lincang Basin in Yunnan Province, USEPA's DRASTIC method was applied to evaluate the groundwater vulnerability of this area with the consideration of depth to the water table, Net recharge, aquifer material,...
The species and community structure characteristics of benthic macroinvertebrate play an important role in assessment of water quality and ecosystem health in rivers and lakes as environmental assessment indices. Linzhuanggang river, which located in Taihu Lake basin in China, was taken as an example in this study for assessment of the impacts of ecological engineering on water quality, habitat of...
A comprehensive evaluation model of water quality based on Fuzzy Complex Index Method was analyzed. Based on the data and its characteristics of the sewage treatment plant outlet water in Foshan, the polluting factors which have a greater polluting impact to assess the water quality were ascertained, and the membership functions and fuzzy matrix were established, finally the outlet water quality of...
Assessment the changes of surface water quality in different times throughout one year is an important aspect for evaluating temporal variation of river pollution due to natural or anthropogenic input of point and non-point sources to water environment that is gradually deteriorating. In this paper, principal component analysis & factor analysis (PCA & FA) is conducted according to the average...
Based on characteristics of lake eutrophication, total phosphorus (TP), total nitrogen (TN), chemical oxygen demand(CODMn), secchi disk depth (SD) and biomass (BIO) were chosen as evaluation indexes. Aiming at the problem being too complex for the present evaluation methods on lake eutrophication, a new method, improved set pair analysis model was used to solve the complicated non-linear relation...
The paper took the reclaimed water plant in one economic zone of Tianjin for an example, and set up six source water quality indexes, pH, SS, CODCr, TN, NH3-N and TP, on the basis of analysis on primary pollutions' variation regularity of the source and the treatment process's characteristic of the reclaimed water plant, and built source water quality forecast system on grey system theory. The study...
Identification of water quality conditions in a river system based on limited observations is an essential task for meeting the goals of environmental management. Various classification methods have been used for water quality estimation. However, a discrepancy frequently arises from the lack of a clear distinction between each water utilization mode, the uncertainty in the quality criteria employed...
The contents and characteristics of ten heavy metals in surface sediments from Yangzonghai Lake in Yunnan, China were analyzed. Ecological risk index presented by Håkanson to assess the potential ecological risk of Yangzonghai Lake was utilized. The results showed that the average concentrations of titanium(Ti), manganese(Mn), zinc(Zn), vanadium(V), chromium(Cr), copper(Cu), nickel(Ni), cobalt(Co),...
This paper reviews on the water quality for Carey Island which is one of the mangrove islands in Malaysia. The mangrove area has vital functions of its mangrove tress. In order to control and protect the level of contamination at this area, a study on water quality has been carried out. Three rivers that selected as a point of study are Air Hitam, Judah and Keluang River. The parameters tested for...
Based on the main hazardous pollution factors remained in reclaimed water, i.e. chemicals and pathogens, and their potential hazards to human health and ecological safety were analyzed according to the different usages of reclaimed water, a new index system including hygienic, toxicological, nutrient, integrated indices was proposed to evaluate the water quality of reclaimed water. However, these...
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