Performance of granular medium filtration and membrane filtration in treating stormwater for harvesting and reuse

Kus, B.; Johir, M.A.H.; Kandasamy, Jaya; Vigneswaran, S.; Shon, Ho Kyong; Sleigh, Robert W; Moody, Glen

doi:10.1080/19443994.2012.692018

Cited by 8 publications

(6 citation statements)

References 8 publications

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“…COD removal confirms the destruction of the organic materials in the TDW and the color reduction [64]. The percentage of COD removal obtained for NSAC (1)(2)(3)(4)(5) samples are: 35.7, 40.3, 46.1, 54.5, 61.3, and 70.1%, respectively, for 120 min irradiation. The NSAC5 catalyst was found to be the most efficient one.…”

Section: Photocatalytic Activitymentioning

confidence: 80%

“…The bands of NSAC (1-5) were of higher energy, when compared to pure NiO. The NSAC (1-5) samples displays higher optical absorption; this is due to addition of intermediate energy bands in NSAC (1)(2)(3)(4)(5), and these intermediate energy levels decrease the effective band gap of the NiO and make it more receptive in the UV region of the electromagnetic spectrum. Fig.…”

Section: Diffuse Reflectance Spectroscopy Studiesmentioning

confidence: 94%

“…They also exhibit hysteresis loop, corresponding to the mesopore structure behavior of Type-IV isotherm. Thus, the AC and NSAC (1)(2)(3)(4)(5) samples are a blend of Type-I and Type-IV isotherms as defined by IUPAC classification. AC uptake of nitrogen adsorption reached as high as 136.63 cm 3 /g, whereas lowest nitrogen adsorption of 33.47 cm 3 /g was obtained for NSAC5.…”

Section: Bet Analysismentioning

confidence: 99%

“…The textile industries are creating constant efforts to reduce the COD level, by innumerable methods, such as hydrolysis in a basic medium, chemical processes, membrane filtration, biological treatment, and foam flotation [3][4][5]. Eventhough these methods were inadequate for the highly toxic textile wastewaters [6].the advanced oxidation processes like photocatalysis, Fenton, and photo-Fenton have been employed in the handling of textile wastewater [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Synergy effect in the photocatalytic degradation of textile dyeing waste water by using microwave combustion synthesized nickel oxide supported activated carbon

Suresh¹,

Vijaya²,

Balasubramaniam³

et al. 2016

Desalination and Water Treatment

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A B S T R A C TNickel oxide nanoparticles supported activated carbon (NSAC) photocatalyst was successfully prepared using a cost-effective microwave irradiation method. The earned UV lightsensitive NSAC composites were characterized using powder X-ray diffraction, Fourier transform infrared spectroscopy, High-resolution scanning electron microscope with energydispersive X-ray analysis, X-ray photoelectron spectroscopy, and Brunauer-Emmett-Teller surface area analyzer. Optical properties of NSAC composites were investigated using UVVis diffuse reflectance spectroscopy and photoluminescence spectroscopy, which exposed prolonged light absorption in UV light region and hold better charge separation capability, respectively, as compared to pure NiO. The photocatalytic activity was tested by the degradation of textile dye waste water (TDW) under UV light irradiation. Chemical oxygen demand of TDW was calibrated before and after the photocatalysis experiment under UV light to evaluate the mineralization of wastewater. The results demonstrated that NSAC composites showed imposing photocatalytic enrichment over pure NiO. The coordinated blending of the oxygen vacant sites, structural defects of NiO along with electron transmission capacity, and presence of surface oxygen on AC has led to the lasting light absorption, delayed charge recombination, and sustenance, which favor the enrichment of the photocatalytic activity of NSAC.

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Section: Photocatalytic Activitymentioning

confidence: 80%

Section: Diffuse Reflectance Spectroscopy Studiesmentioning

confidence: 94%

Section: Bet Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synergy effect in the photocatalytic degradation of textile dyeing waste water by using microwave combustion synthesized nickel oxide supported activated carbon

Suresh¹,

Vijaya²,

Balasubramaniam³

et al. 2016

Desalination and Water Treatment

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show abstract

“…The treatment of contaminants in wash water can be achieved using various conventional and emerging methods including ion exchange, electrolyte or liquid extraction, precipitation, and reverse osmosis [18]. However, most of the physiochemical techniques are either economically unfavorable [19] or simply too technically complicated.…”

Section: Introductionmentioning

confidence: 99%

Winter Maintenance Wash-Water Heavy Metal Removal Pilot Scale Evaluation

Miller

Schneider

Tshimanga

et al. 2016

Journal of Chemistry

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To encourage sustainable engineering practices, departments of transportation are interested in reusing winter maintenance truck wash water as part of their brine production and future road application. Traffic-related metals in the wash water, however, could limit this option. The objective of this work was to conduct a pilot scale evaluation of heavy metal (copper, zinc, iron, and lead) removal in a filtration unit (maximum flow rate of 45 L/minute) containing proprietary (MAR Systems Sorbster®) media. Three different trials were conducted and approximately 10,000 L of wash water collected from a winter maintenance facility in Ohio was treated with the pilot unit. Lab studies were also performed on six wash-water samples from multiple facilities to assess particle size removal and estimate settling time as a potential removal mechanism during wash-water storage. Pilot unit total metal removal efficiencies were 79%, 77%, 63%, and 94% for copper, zinc, iron, and lead, respectively. Particle settling calculation estimates for copper and zinc show that 10 hours in storage can also effectively reduce heavy metal concentrations in winter maintenance wash water in excess of 70%. These pilot scale results show promise for reducing heavy metal concentrations to an acceptable level for reuse.

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Preliminary Laboratory Investigations into Zinc and Copper Adsorption by Crushed Bivalve Shells

Thind

McDougall

Jones

et al. 2022

Water Air Soil Pollut

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Crushed shells from three bivalve mollusc species (mussel, oyster and scallop) in two particle size ranges (63–150 μm and 710–1180 μm) were tested for their ability to remove dissolved copper and zinc ions from synthetic stormwater in a column. For comparison, zeolite (1–2 mm), which is commonly used for heavy metal ion capture, was also assessed. All shell types of both particle sizes were effective in removing zinc from solution with 97–100% removal efficiency which was similar to the removal efficiency by zeolite (97.6%). The removal of copper was most efficiently achieved with oyster shell with a particle size range of 710–1180 μm (83.6%), which was similar to the removal efficiency by zeolite (83.4%). Brunauear-Emmett-Teller (BET) surface area measurements showed significant decreases in the surface area of the shells after exposure to synthetic stormwater due to adsorption of heavy metals, visually confirmed by observation of a fine layer of metal precipitate adsorbed to the shell particle surfaces using Scanning Electron Microscopy (SEM). Overall, the results indicate that crushed bivalve shells have excellent potential for the removal of dissolved zinc and copper from stormwater and should be tested in more complex stormwater studies. This work has significant implications for stormwater infrastructure design using a local, cheap and readily accessible waste material.

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Performance of granular medium filtration and membrane filtration in treating stormwater for harvesting and reuse

Cited by 8 publications

References 8 publications

Synergy effect in the photocatalytic degradation of textile dyeing waste water by using microwave combustion synthesized nickel oxide supported activated carbon

Synergy effect in the photocatalytic degradation of textile dyeing waste water by using microwave combustion synthesized nickel oxide supported activated carbon

Winter Maintenance Wash-Water Heavy Metal Removal Pilot Scale Evaluation

Preliminary Laboratory Investigations into Zinc and Copper Adsorption by Crushed Bivalve Shells

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