Chemical contaminants in urban runoff characteristics, sources and low cost treatment

... urban area in Singapore, an intensive sampling program was conducted with collection of fresh rainwater, and urban runoff from roof, residential and commercial areas The pH of rainwater in Singapore ... meet the ever increasing demand of potable water in urban areas, all the available sources of water are being used, which include surface runoff from urbanized areas Usin...

Ngày tải lên: 11/09/2015, 09:57

... Trichloroethylene Limiting pathway (ppm) adult eating animal products child eating biosolids child eating biosolids adult eating fish/drinking water adult eating animal products adult eating animal products ... determining appropriate limits for dioxins in biosolids (US EPA 2003) EPA considered the potential for increased cancer risk from dioxins for those that eat a majority of their...

Ngày tải lên: 14/02/2014, 08:20

... illuminated J Holis and P Pechac 60 Measured penetration loss inside the building, f = GHz Measured penetration loss in different buildings, f = GHz 60 50 Penetration loss (dB) Penetration loss ... Penetration loss (dB) Final penetration loss model in urban environment where LFSL is the free space loss in dB, and LPL is the penetration loss in d...

Ngày tải lên: 21/06/2014, 23:20

... task, it was necessary to design and develop a novel technology that could directly interface a range of sensor elements and to provide a reliable and low cost method of capturing and storing the ... order to provide automatic interpretation of the output pulse train and to offer a direct readout in the numerical units desired In the case of PC-based...

Ngày tải lên: 22/06/2014, 01:20

... children with severe sepsis, and in patients receiving lowdose heparin [3] In the Administration of Drotrecogin Alfa (Activated) in Early Stage Severe Sepsis (ADDRESS) study [1], Abraham and colleagues ... lung injury/acute respiratory distress syndrome Recommendation We concur with the ADDRESS authors DrotAA should not be used in patients with seve...

Ngày tải lên: 13/08/2014, 03:20

... further investigation In CD -low- CU children, affective perspective-taking deficits are underlined by cognitive perspective-taking deficits while in CD -high- CU children affective perspective-taking ... N, Tyler LA, Frazer D: Psychopathy and conduct problems in children: II Subtyping children with conduct problems based on their interpersonal and affective styl...

Ngày tải lên: 13/08/2014, 18:21

... disposed such as: Each brass basin has 10l (waste or pure water) with plants same size (35±2cm) Figure: Brass basin: waste concentration 100% with plants equation has brass basin: + Brass basin ... waste concentration 100% + Brass basin 2: waste concentration 50% + Brass basin 3: pure water equation has repeat sets - Stage of preparing for experiment: Ludwigia: (mark each of plant) + M...

Ngày tải lên: 15/01/2016, 16:17

... obtained at low cost for most dams • Relevant costs may be particularly low where costs of labour and consultancy are low, for instance in Asia where are most existing and future dams and where ... of reservoirs with free-flow spillway - Increasing safety of dams - On rivers or canals - Improving morning glory spillways Creating an additional spillway on Goulours Dam (EDF...

Ngày tải lên: 13/08/2014, 22:21

... low during low flow (dry day in rainy season and dry season) but was substantially higher during storm events due to increased runoff bringing particulate material into the channel, which indicates ... the combining runoff volume and water quality data that produce hydrograph and pollutograph during rainy season (with 58.0 mm of precipitation) and dry season (with no rainfall) In rain...

Ngày tải lên: 05/09/2013, 09:38

... environmental  risks  of applying  wastewater in agro‐ecosystems.  The  main  objective  of this  paper  was  to  quantify the effects of reuse of wastewater as nutrient sources by:  (i)  investigating  ... concentration  of cations  such  as Na  and  K  in wastewater led  to  an  increase in EC and exchangeable Na and K in soils irrigated with wastewater.  The high pH  of soils  i...

Ngày tải lên: 14/03/2014, 15:20

... et al.: Analysis and modeling of spatial characteristics in urban microscenario of heterogeneous network EURASIP Journal on Wireless Communications and Networking 2011 2011:187 Competing interests ... number of paths of which the jn = θ, and the Pn, θ is the power of the corresponding path 4.2 Data analysis and angular offset modeling Figure depicts a sp...

Ngày tải lên: 20/06/2014, 21:20

... Bofill-Mas et al., Newly described human polyomaviruses Merkel Cell, KI and WU are present in urban sewage and may represent potential environmental contaminants Virology Journal 2010, 7:141 ... typical levels of human fecal pollution, as shown by JCPyV and HAdV concentrations (Table 2) KIPyV and WUPyV were present in 1/8 and 2/8 sewage samp...

Ngày tải lên: 12/08/2014, 04:20

... OCCURRENCE AND DISTRIBUTION OF PAHs IN RAINWATER AND URBAN RUNOFF ELISABETH RIANAWATI (B Eng., ITB) A THESIS SUMBITTED FOR THE DEGREE OF MASTER OF ENGINEERING DIVISION OF ENVIRONMENTAL ... method to assess PAHs distribution in rainwater and stormwater; (2) To determine PAHs distribution in rainwater and stormwater; (3) To estimate deposition flux...

Ngày tải lên: 27/11/2015, 11:25

... capable of detecting and determining many chemicals in several types of food products, and doing so in the somewhat routine, high volume, rapid turn-around atmosphere of a large monitoring laboratory.6,7 ... for the analysis of drugs, pesticides, metals, vitamins, food additives, natural poisons, and other chemical and microbial contaminants in food and feed Jour...

Ngày tải lên: 11/01/2016, 13:49