scholarly journals EFFICIENCY OF OIL REMOVAL FROM REAL STORM WATER WITH DIFFERENT SORBENTS / NAFTOS PRODUKTŲ ŠALINIMO IŠ PAVIRŠINIŲ NUOTEKŲ EFEKTYVUMAS NAUDOJANT SKIRTINGUS SORBENTUS

2011 ◽  
Vol 3 (5) ◽  
pp. 132-136
Author(s):  
Aušra Mažeikienė ◽  
Dovilė Rimkutė
Keyword(s):  
Water Surface ◽  
Suspended Solids ◽  
Storm Water ◽  
Oil Removal ◽  
Treatment Efficiency ◽  
Similar Treatment ◽  
Surface Water Flow ◽  
Filtering Rate ◽  
Matching Techniques ◽  
Comprehensive Study

Suspended solids and oil products are considered as the most important pollutants in storm water. Surface water flow and changes in pollutant concentration complicate conventional matching techniques and prolong the duration of technological processes; therefore, a comprehensive study on this area is necessary. For this reason, the research and analysis of three different sorbents (“FIBROIL®”, “Duck”, “Reo-dry”) were performed in the laboratory. According to the results of the conducted experiment, all three sorbents have similar treatment efficiency: “FIBROIL®” – 99%, “Reo-dry” – 95%, “Duck” – 98%. Filtering rate had an influence on the effectiveness of removing petrol products (slower speed increases effectiveness). Santrauka Didžiausiais paviršinių nuotekų teršalais laikomi naftos produktai ir skendinčiosios medžiagos. Vienas iš efektyviausių naftos produktų šalinimo iš nuotekų būdų yra filtravimas pro sorbuojančiosios medžiagos filtrą. Paviršinių nuotekų tekėjimas ir teršalų koncentracijų kaita apsunkina įprastinių technologijų suderinamumą, pailgina technologinių procesų trukmės laiką, todėl yra būtini šios srities išsamūs tyrimai. Šiame darbe buvo atliktas trijų skirtingų sorbentų (,,FIBROIL®“, „Duck“, „Reo-dry“) šalinant iš paviršinių nuotekų naftos produktus eksperimentinis efektyvumo tyrimas. Atlikus bandymus laboratoriniame stende, nustatyta, kad visų trijų sorbentų efektyvumas, šalinant naftos produktus, panašus: ,,FIBROIL®“ – 99 %, ,,Reo-dry“ – 95 %, ,,Duck“ – 98 %. Naftos produktų šalinimo efektyvumą veikė filtravimo greitis (kuo mažesnis greitis, tuo didesnis efektyvumas).

scholarly journals Physical Model Testing Of An Experimental Vortex Device For Controlling Total Suspended Solids In Stormwater

2021 ◽  
Author(s):  
Zihan Mi
Keyword(s):  
Flow Rate ◽  
Suspended Solids ◽  
Performance Testing ◽  
Oil Removal ◽  
Test Results ◽  
Treatment Efficiency ◽  
Compact Size ◽  
Treatment Technologies ◽  
Solids Removal ◽  
Regulatory Guideline

In highly urbanized area, lack of space limits the application of most stormwater quality treatment technologies. Oil/Grit Separators (OGSs) are preferred in these cases due to their compact size and reasonable solids removal efficiency. The objective of this research is to identify the challenges and practical potential solutions of solids treatment performance testing on a full-scaled experimental vortex device (EVD) adopting TRCA’s regulatory guideline titled the “Procedure for Laboratory Testing of Oil/Grit Separators” (referred to in this paper as the Procedure) which stipulates the standards of sediments and oil removal tests in Canada. The test results indicated that: (1) TSS treatment efficiency of EVD was observed to decline with the particle size and flow rate; and (2) the average overall TSS treatment efficiency decreased from 52% to 44% as the flow rate doubled.

scholarly journals Physical Model Testing Of An Experimental Vortex Device For Controlling Total Suspended Solids In Stormwater

2021 ◽  
Author(s):  
Zihan Mi
Keyword(s):  
Flow Rate ◽  
Suspended Solids ◽  
Performance Testing ◽  
Oil Removal ◽  
Test Results ◽  
Treatment Efficiency ◽  
Compact Size ◽  
Treatment Technologies ◽  
Solids Removal ◽  
Regulatory Guideline

In highly urbanized area, lack of space limits the application of most stormwater quality treatment technologies. Oil/Grit Separators (OGSs) are preferred in these cases due to their compact size and reasonable solids removal efficiency. The objective of this research is to identify the challenges and practical potential solutions of solids treatment performance testing on a full-scaled experimental vortex device (EVD) adopting TRCA’s regulatory guideline titled the “Procedure for Laboratory Testing of Oil/Grit Separators” (referred to in this paper as the Procedure) which stipulates the standards of sediments and oil removal tests in Canada. The test results indicated that: (1) TSS treatment efficiency of EVD was observed to decline with the particle size and flow rate; and (2) the average overall TSS treatment efficiency decreased from 52% to 44% as the flow rate doubled.

scholarly journals STUDIES AND ANALYSIS OF THE EFFECTIVENESS OF STORMWATER RUNOFF PURIFICATION EQUIPMENT IN VILNIUS

2010 ◽  
Vol 2 (5) ◽  
pp. 30-35 ◽  
Author(s):  
Egidija Jaruševičiūtė ◽  
Aušra Mažeikienė ◽  
Marina Valentukevičienė
Keyword(s):  
Urban Areas ◽  
Suspended Solids ◽  
Stormwater Runoff ◽  
Treatment Plant ◽  
Heavy Rain ◽  
Petroleum Products ◽  
Stormwater Treatment ◽  
Surface Water Flow ◽  
Pollutant Reduction ◽  
Matching Techniques

In order to protect the natural environment from pollution, pollutant reduction in the stormwater runoff of urban areas is a particularly relevant factor. Uneven surface water flow and changes in pollutant concentration complicate conventional matching techniques and processes as well as prolong the duration of time which requires a comprehensive study in this area. Therefore, experiments on inflow stormwater turbidity and impurity with suspended solids and petroleum products were carried out according to the prepared sample collecting methodology. The study evaluated the effectiveness of cleaning a stormwater treatment plant along the settlement chamber in the chosen points. The settling time of impurities found in stormwater was analyzed under the presence of ideal conditions in the laboratory. The conducted experiments established dependence between suspended solids and turbidity. Stormwater pollution by SS was reduced only to 21–35% after heavy rain or a snow melting period in treatment plants.

scholarly journals Solids Removal Efficiency of a Sedimentation Tank in a Peri-Urban Catchment

2020 ◽  
Vol 12 (17) ◽  
pp. 7196 ◽  
Author(s):  
Salvatore Falco ◽  
Giuseppe Brunetti ◽  
Giovanna Grossi ◽  
Mario Maiolo ◽  
Michele Turco ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Surface Runoff ◽  
Suspended Solids ◽  
Southern Italy ◽  
Treatment Efficiency ◽  
Urban Catchment ◽  
Sedimentation Tank ◽  
Basin Surface ◽  
Different Grain Size ◽  
Solids Removal

At the outlet of the Vermicelli catchment—a peri-urban area located in the campus of University of Calabria (Cosenza, Southern Italy)—a sedimentation tank is located, aiming at collecting the basin surface runoff and improve its quality. First, experimental results of the treatment effects are here presented and analyzed. In addition, a monitoring campaign was conducted in order to characterize the particles transported by surface runoff and to determine the treatment efficiency of the tank. The analysis showed the presence of a pollutant load in the surface runoff of the Vermicelli basin and provided information on its particle-size distribution (PSD). Results were considered in terms of the treatment efficiency of the sedimentation tank, showing a good overall removal efficiency value, together with a high variability of the removal sedimentation efficiency. This variability is mainly due to the different grain size of the suspended solids and the characteristics of the rainfall event.

Robust superhydrophobic and oleophilic silk fibers for selective removal of oil from water surfaces

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73660-73667 ◽  
Author(s):  
Manoj Patowary ◽  
Khanindra Pathak ◽  
Rajakumar Ananthakrishnan
Keyword(s):  
Water Surface ◽  
Selective Removal ◽  
Oil Removal ◽  
Silk Fibers ◽  
Water Surfaces

Superhydrophobic silk fibers have been developed from silk cocoons as a potential sorbent for selective oil removal from a water surface.

Preparation of a New Inorganic-Organic Composite Dual-Coagulant and Application of Oily Wastewater Treatment

2011 ◽  
Vol 233-235 ◽  
pp. 523-527 ◽  
Author(s):  
Song Jiang Ma ◽  
Mei Ling Fu ◽  
Fang Wen Li ◽  
Nian Fen Wu ◽  
Juan Yang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Removal Rate ◽  
Optimal Dosage ◽  
Oily Wastewater ◽  
Oil Removal ◽  
Treatment Efficiency ◽  
Coagulation Performance ◽  
Oily Wastewater Treatment ◽  
Ph Range ◽  
Scanning Electron

A new inorganic-organic composite dual-coagulant (PAFC-CPAM) was prepared by polyaluminum ferric chloride (PAFC) and cationic polyacrylamide (CPAM) and its treatment efficiency for oily wastewater was evaluated by coagulation jar tests. PAFC-CPAM dual-coagulants were characterized by FT-infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The FTIR spectra illustrated that there were some chemical reactions between PAFC and CPAM in PAFC-CPAM. SEM micrographs testified that PAFC-CPAM formed compact net structure which is different from PAFC and CPAM, resulting to its outstanding coagulation performance other than monomeric coagulant in treating oily wastewater. Coagulation jar tests presented that PAFC-CPAM improved 1.14% and 0.38% of oil removal rate and reduced 0.35NTU and 0.06NTU of residual turbidity than PAFC and CPAM respectively at the optimal dosage of 120mg/L. PAFC-CPAM enhanced 4.56% and 2.12% of oil removal efficiency and decreased 0.27NTU and 0.01NTU of residual turbidity on average in comparison with PAFC and CPAM respectively in the pH range of 4.0-8.0. All of above-mentioned experiment results demonstrated that PAFC-CPAM behaved superior coagulation performance than PAFC and CPAM.

Hydrodynamic modelling of free water-surface constructed storm water wetlands using a finite volume technique

2015 ◽  
Vol 36 (20) ◽  
pp. 2532-2547 ◽  
Author(s):  
Mohammad Zounemat-Kermani ◽  
Miklas Scholz ◽  
Mohammad-Mahdi Tondar
Keyword(s):  
Finite Volume ◽  
Water Surface ◽  
Free Water ◽  
Storm Water ◽  
Hydrodynamic Modelling ◽  
Free Water Surface
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