scholarly journals The efficiency of forest drainage system sedimentation ponds in the context of water quality

2019 ◽  
Author(s):  
Zane Kalvite ◽  
◽  
Zane Libiete ◽  
Ivars Klavins ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Drainage System ◽  
Forest Drainage

scholarly journals EVALUATION OF THE WATER QUALITY OF BAHR EL BAQAR DRAINAGE SYSTEM

2021 ◽  
Vol 50 (4) ◽  
pp. 23-53
Author(s):  
Ranya M. Salah Eldin ◽  
Noha S. Donia ◽  
Ashraf E. Ismail
Keyword(s):  
Water Quality ◽  
Drainage System

scholarly journals Water quality and quantity assessment of pervious pavements performance in experimental car park areas

2014 ◽  
Vol 69 (7) ◽  
pp. 1526-1533 ◽  
Author(s):  
Luis A. Sañudo-Fontaneda ◽  
Susanne M. Charlesworth ◽  
Daniel Castro-Fresno ◽  
Valerio C. A. Andres-Valeri ◽  
Jorge Rodriguez-Hernandez
Keyword(s):  
Water Quality ◽  
Drainage System ◽  
Concrete Block ◽  
Concrete Surface ◽  
Basic Oxygen Furnace ◽  
Total Petroleum Hydrocarbons ◽  
Porous Concrete ◽  
Base Materials ◽  
Bivariate Correlation ◽  
Car Park

Pervious pavements have become one of the most used sustainable urban drainage system (SUDS) techniques in car parks. This research paper presents the results of monitoring water quality from several experimental car park areas designed and constructed in Spain with bays made of interlocking concrete block pavement, porous asphalt, polymer-modified porous concrete and reinforced grass with plastic and concrete cells. Moreover, two different sub-base materials were used (limestone aggregates and basic oxygen furnace slag). This study therefore encompasses the majority of the materials used as permeable surfaces and sub-base layers all over the world. Effluent from the test bays was monitored for dissolved oxygen, pH, electric conductivity, total suspended solids, turbidity and total petroleum hydrocarbons in order to analyze the behaviour shown by each combination of surface and sub-base materials. In addition, permeability tests were undertaken in all car parks using the ‘Laboratorio Caminos Santander’ permeameter and the Cantabrian Portable Infiltrometer. All results are presented together with the influence of surface and sub-base materials on water quality indicators using bivariate correlation statistical analysis at a confidence level of 95%. The polymer-modified porous concrete surface course in combination with limestone aggregate sub-base presented the best performance.

The Researches and Analysis on Lakes Water Quality of the Guangzhou Higher Education Mega Center

2011 ◽  
Vol 347-353 ◽  
pp. 2268-2272
Author(s):  
Quan Hu ◽  
Zhi Hong Wang ◽  
Yan Guo ◽  
Dan Gao
Keyword(s):  
Higher Education ◽  
Water Quality ◽  
Water Environment ◽  
Drainage System ◽  
Water Quality Assessment ◽  
Quality Standard ◽  
Main Research ◽  
Environment Quality ◽  
University City ◽  
Relationship Of

The research treats the lakes of the Guangzhou Higher Education Mega Center(HEMC) as the main research objects. According to the relationship of the lakes and university city drainage system,lakes are the accepter of rain and sewage.In fact, the lakes of HEMC can be divided into five categories,our researches choose the natural pond,ornamental pond , the oxidation pond as the main bodies of researches，which have a great impact on environment and people. The lakes of HEMC are not a source of drinking water. We select the phosphorus, nitrogen, COD, Fe, Mn, and ctc. as the main indexs of water quality assessment. The results of the typical sampling points are under the surface water environment quality standard for level Ⅴ. The main pollutants are TN and TP. According to the situation of the lakes, putting forward views to improve the water quality.

scholarly journals Hydrological Modelling and Evaluation of Detention Ponds to Improve Urban Drainage System and Water Quality

Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1547 ◽  
Author(s):  
Fernanda Pereira Souza ◽  
Maria Elisa Leite Costa ◽  
Sergio Koide
Keyword(s):  
Water Quality ◽  
Algal Blooms ◽  
Wastewater Treatment Plants ◽  
Drainage System ◽  
Poor Response ◽  
Good Alternative ◽  
Qualitative Behavior ◽  
Urban Drainage ◽  
Lake Water Quality ◽  
Detention Ponds

Paranoá Lake is an urban lake and it is being used as a source for urban water supply since last year. Until 1990, algal blooms occurred and improvements on wastewater treatment plants carried out improved the water quality very rapidly due to phosphorus load reduction. Recently, water quality is deteriorating, which is probably due to diffuse pollution. In Brazil, we adopt separated pipe networks for sewage and stormwaters, although cross flows occur. The evaluation of urban drainage stormwaters entering the lake and proposition of technical alternatives is crucial in minimizing the impacts on lake water quality. Quantitative and qualitative behavior of urban stormwaters were analyzed by means of monitoring the runoff flows and pollutant concentrations. Mathematical modelling while using the Storm Water Management Model—SWMM was carried out, and good correlations were found for flow modelling. However, poor response was achieved for water quality simulations, affecting the simulated pollutant loads entering the lake. The simulation of 13 alternatives for detention ponds location was also evaluated, as well as their influences on flow damping capability. The detention ponds that were tested were placed in line in the drainage mains to study the effects of their location on the removal of pollutants. As expected, the results showed that ponds located near the outfall are more efficient in reducing flow peaks. However, this layout requires construction woks in areas that are more sensitive to environmental and urbanistic problems and with higher land commercial values. Alternatives with smaller volumes in public areas near the center of the catchment area can lead to the peak flow damping required by the existing drainage network to avoid overflows. In conclusion, detention ponds can be a good alternative for improving the stormwater quantity and quality, but also alternatives that promote increased infiltration, should also be considered for compensating the infiltration lost due to urbanization.

I Love That Dirty Water – Modeling Water Quality in the Boston Drainage System

2013 ◽  
Vol 2013 (18) ◽  
pp. 1215-1239
Author(s):  
Matt Gamache ◽  
Mitch Heineman ◽  
Derek Etkin ◽  
Zachary Eichenwald ◽  
Jamie Lefkowitz ◽  
...  
Keyword(s):  
Water Quality ◽  
Drainage System ◽  
Water Modeling ◽  
Dirty Water

scholarly journals Comparative analysis of the outflow water quality of two sustainable linear drainage systems

2014 ◽  
Vol 70 (8) ◽  
pp. 1341-1347 ◽  
Author(s):  
V. C. Andrés-Valeri ◽  
D. Castro-Fresno ◽  
L. A. Sañudo-Fontaneda ◽  
J. Rodriguez-Hernandez
Keyword(s):  
Water Quality ◽  
Petroleum Hydrocarbons ◽  
Suspended Solids ◽  
Drainage System ◽  
Quality Parameters ◽  
Total Petroleum Hydrocarbons ◽  
Drainage Systems ◽  
System A ◽  
Car Park

Three different drainage systems were built in a roadside car park located on the outskirts of Oviedo (Spain): two sustainable urban drainage systems (SUDS), a swale and a filter drain; and one conventional drainage system, a concrete ditch, which is representative of the most frequently used roadside drainage system in Spain. The concentrations of pollutants were analyzed in the outflow of all three systems in order to compare their capacity to improve water quality. Physicochemical water quality parameters such as dissolved oxygen, total suspended solids, pH, electrical conductivity, turbidity and total petroleum hydrocarbons were monitored and analyzed for 25 months. Results are presented in detail showing significantly smaller amounts of outflow pollutants in SUDS than in conventional drainage systems, especially in the filter drain which provided the best performance.

scholarly journals An integrated approach for urban water quality assessment

2011 ◽  
Vol 64 (7) ◽  
pp. 1519-1526 ◽  
Author(s):  
A. S. Beenen ◽  
J. G. Langeveld ◽  
H. J. Liefting ◽  
R. H. Aalderink ◽  
H. Velthorst
Keyword(s):  
Water Quality ◽  
Drainage System ◽  
Water Quality Assessment ◽  
Integrated Approach ◽  
Urban Drainage ◽  
Urban Water ◽  
Sewer System ◽  
Urban Drainage System ◽  
Urban Water Quality ◽  
Receiving Water

This paper introduces an integrated approach for the assessment of receiving water quality and the relative contribution of the urban drainage system to perceived receiving water quality problems. The approach combines mass balances with relatively simple receiving water impact models. The research project has learned that the urban drainage system is only one of the determining factors with respect to receiving urban water quality problems. The morphology of the receiving waters and the non-sewer sources of pollution, such as waterbirds, dogs, or inflow of external surface water might be equally important. This conclusion underlines the necessity to changes today's emission based approach and adopt an integral and immission based approach. The integrated approach is illustrated on a case study in Arnhem, where the receiving water quality remained unsatisfactory even after retrofitting a combined sewer system into a separated sewer system.

scholarly journals The Use of Drop-Structures to Increase the Dissolved Oxygen Level along the Cibarani Channel

2021 ◽  
pp. 55-66
Author(s):  
Jonathan Wijaya ◽  
Doddi Yudianto ◽  
Finna Fitriana
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Vertical Wall ◽  
Drainage System ◽  
Water Source ◽  
Domestic Waste ◽  
Control Techniques ◽  
The One ◽  
Drop Structure ◽  
Test Result

The Cikapundung river basin community uses the Cibarani channel as a drainage system and water source for fishing. However, the test result released on 9th November 2020 revealed that the channel’s water quality failed to reach the class II raw water standards due to various domestic waste discharges. This led to the performance of various studies to identify pollution control techniques by limiting the wastewater discharge and quality, controlling the intake discharge, and using baffles. The Cibarani channel has a drop-structure that can improve the water quality, though the effect has not been previously detailed. Therefore, this study was intended to comprehensively examine the effect of the drop-structure along the Cibarani channel to improve water quality conditions, specifically the Dissolved Oxygen (DO) parameter. This study employed the one-dimensional HEC-RAS software to simulate the hydrodynamic and water quality conditions along the Cibarani channel, and the drop-structure was modelled using two alternatives consisting of a vertical wall and a steep riverbed. Subsequently, the drop-structure fitted with a vertical wall gave a more plausible reaeration rate of 125 day-1 and Root Mean Square Error (RMSE) value of 0.50. The placement of a similar configuration before the first housing of the channel increased the DO concentrations by an average of 4.37 mg/L. This was followed by the modelling of another drop-structure after the first housing to increase the DO levels at the downstream part. Eventually, the combination of the two new drop-structures succeeded in increasing the DO concentrations along the Cibarani channel to 3.3 - 6.9 mg/L.

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