Study on Modified Sand Filtration Towards Water Quality of Wet Market Waste Water

Saad, Farah Naemah Mohd; Jamil, M.; Odli, Zaity Syazwani Mohd; Izhar, Tengku Nuraiti Tengku

doi:10.1051/matecconf/20167801104

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…Turbidity reduces because of the reduction of suspended and dissolved solids. Few research studies reported that the sand filtration using activated carbon is a superior method and reduces mainly pH, TDS, turbidity and COD when the wastewater is passed through it (Prasad et al 2006;Khalaphallah 2012;Saad et al 2016). The same has been observed in the present study using the above technique.…”

Section: Treated Greywatersupporting

confidence: 84%

Treatment and effective utilization of greywater

2019

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Sustainable management aims at the governance of natural resources to meet the needs of future generations. The limited resources of freshwater in arid regions have led to the development of alternative water management strategies. To meet the future challenges of water scarcity, an attempt has been made in this study to utilize treated greywater obtained by gravitygoverned filtration technique and disinfection for domestic usage. The study addresses the possibilities of groundwater recharge with the treated greywater. The method focuses on a gravity-governed flow through a column containing activated carbon, sand and gravel. The greywater used for the treatment contains a mixture of equal proportions of water collected from three different sources such as kitchen sink, shower and washing machine in Fahaheel, Salmiya and Farwaniya areas of Kuwait. The study concluded that for a volume of 1167 cm 3 filtration media used, the designed column was 34% effective for first 1100 mL of greywater. Later, the column was regenerated by washing with distilled water and the regenerated column still proved to be effective with a removal efficiency of 26% for next 600 mL of greywater. The quality of the treated greywater was assessed in terms of physical, chemical and microbiological parameters as per the standard methods to check the suitability for domestic purposes. The results obtained were also compared with the groundwater quality of Kuwait group and Dammam aquifers, and it was inferred to be at par with their quality. The TDS of treated greywater has been reduced from 4910 to 1508 mg/L, which is also lower than the TDS in groundwater of both the aquifers, and pH was reduced from 10.29 to 7.94. The present study proved its efficiency equally to other existing methods, and the efficiency of removal for some of the analyzed parameters was measured as 23%, 95%, 52%, 88%, 100% and 100% for pH, color, TDS, turbidity, total coliform and E. coli, respectively. Hence, the study is simple and cost-effective approach that can be adopted for the treatment and reused greywater for domestic and agriculture and also for recharging the aquifers to prevent saltwater intrusion along the coastal aquifers.

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Section: Treated Greywatersupporting

confidence: 84%

Treatment and effective utilization of greywater

2019

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“…Turbidity values for the RCHP were relatively lower than CCHP due to the adsorbent's low porosity and surface area. Turbidity removal by the Control is consistent with the available literature on turbidity removal by sand filters (Saad et al, 2016) in that sand and gravel grains are known to remove suspended matter in greywater, thereby making wastewater less turbid (Samayamanthula et al, 2019). From an influent of 58 TCU, results obtained for color in the treated effluent were 10 TCU, 69 TCU, and 63 TCU for CCHP, RCHP, and Control.…”

Section: Turbidity and Coloursupporting

confidence: 84%

Engineered column treatment of greywater using raw and pyrolyzed coconut husk powder

Taylor

Appiah–Effah

Akodwaa-Boadi

et al. 2023

Front. Environ. Sci.

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Reclaimed water from wastewater has become a prominent water source option to manage water scarcity. This study explores the potential of coconut husk biomass, a common waste material in Ghana, as a valuable low-cost resource for greywater treatment. Engineered column treatment was applied to investigate the influence of pyrolysis and biochar properties of coconut husk biomass waste on greywater treatment. Coconut husk biomass waste was pyrolyzed at 600°C and characterized using SEM, FTIR, and XRD. Three engineered columns with 1) raw coconut husk powder (RCHP), 2) charred coconut husk powder (CCHP), and 3) sand-gravel filters (control setup) were used. A hydrostatic head of greywater with a throughput of 8.0 ml/min and a hydraulic retention time of 45 min was maintained for engineered columns. The SEM image suggested an increased surface area and pores due to the pyrolysis of the husk biomass. RCHP and CCHP contributed to 63% and 95% turbidity removal, respectively. Experimental results showed high removal efficiencies of 71% COD for CCHP. The nitrate removal efficiency of 78.93%, 88.38%, and 28.65% was observed for RCHP, CCHP, and control respectively. The log removal of faecal coliform by CCHP was two orders of magnitude higher than RCHP. Faecal and total coliform removal was 2.87 log units for CCHP. Significant differences were observed between CCHP and RCHP, p < 0.05 for electrical conductivity and total dissolved solids of effluents. CCHP showed a promising potential for greywater treatment. Pyrolyzed coconut husk powder is a promising adsorbent applicable to greywater treatment.

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“…These results indicate that the entire treatment process is capable of removing bacteria, especially faecal coliforms which are the mostly causative of waterborne infection (Suvadhan, 2014). It has long been known that sand has been used as a filter to purify drinking water in many industry (Saad et al, 2016), and silica sand has been used to purify water as it has ability to trap microorganism (Rafael, 1992).…”

Section: Assessment Of Ag Nps-silica Sand Filter Performance For Bact...mentioning

confidence: 94%

Development of a filter system using silver nanoparticles modified silica sand for drinking water disinfection

Margareth,

Fortunatus,

Ally

2023

Afr. J. Environ. Sci. Technol.

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This study presents a filter system for the removal of pathogenic microorganisms from potable water using silver nanoparticle-modified silica sand. While silica sand has potential applications in wastewater treatment, its effectiveness in microbial filtration falls short. Thus, there is a need for an environmentally friendly enhancement method. The silver nanoparticles were synthesized using Commelina maculata leaf extracts, and their diameter ranged from 50 to 80 nm. The Ag NPs were immobilized on silica sand, improving the modified sand's physicochemical properties. The filter system, composed of Ag NP-modified silica sand packed in a glass column, reliably removed 98% of the culturable E. coli population in water. The results suggest that the developed filter system has potential use in drinking water disinfection in remote rural areas. However, further cost analysis is required before scaling up for mass production and real-world use.

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Study on Modified Sand Filtration Towards Water Quality of Wet Market Waste Water

Cited by 8 publications

References 6 publications

Treatment and effective utilization of greywater

Treatment and effective utilization of greywater

Engineered column treatment of greywater using raw and pyrolyzed coconut husk powder

Development of a filter system using silver nanoparticles modified silica sand for drinking water disinfection

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