Wastewater treatment by slow sand filters using uncoated and iron-coated fine sand: impact of hydraulic loading rate and media depth

Verma, Srishti; Daverey, Achlesh; Sharma, Archana

doi:10.1007/s11356-018-3551-4

Cited by 18 publications

(13 citation statements)

References 30 publications

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“…The sieve analysis of sand media was carried out as per the American Society for Testing and Materials (ASTM) test methods [10]. The water holding capacity, bulk density and porosity of the soil were determined as in Goswami et al [26] and Jain and Kalamdhad [27].…”

Section: Physical Analysismentioning

confidence: 99%

“…Rainwater Harvesting (RWH) is the most appropriate technique for artificially recharging the coastal aquifers [5], diluting the specified dissolved solids [6]. Meanwhile, to achieve the United Nations (UN) sustainable development goals (SDG) of Clean Water and Sanitation, several attempts have been made through ion exchange [7], membrane treatment process [8], reverse osmosis [9], sand filtration (SF) [10], etc. Sand filtration is a viable and economic option to treat wastewater, potable water, and rainwater [11].…”

Section: Introductionmentioning

confidence: 99%

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Environmental resilience and sustainability through green technologies: A case evidence from rural coastal India

D’Silva

Verma

Magdaline

et al. 2021

Environmental Engineering Research

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Rural coastal regions in developing countries are generally neglected with respect to environmental issues. The present study examined the feasibility of green technologies such as rainwater harvesting (RWH), sand filtration (SF), and composting (in-vessel and pit) to recover from the environmental issues in the coastal rural regions using survey and geographic information systems considering a rural Indian case study. According to the results, RWH yielded 0.140 million litres per 100 m². rooftop in the area, while a maximum total dissolved solids removal of 52% was achieved using the SF alleviating the water concerns. Meanwhile, with a solid waste generation of 0.207 kg d -1 capita -1 comprising 79.81% organic fraction, composting becomes the best waste resource recovery option in the area. Pilot-scale studies of composting transformed organic wastes into compost manure rich in nutrients improving the soil quality. Further analysis using a multi-criteria decision-making approach revealed that the public interest in applying these technologies depends on investment costs, additional resources requirements, and governmental policies. With the scope of improved lifestyle and quality, the study proposes more future research over green technologies and their implementation and is also directed towards dev

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Section: Physical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Environmental resilience and sustainability through green technologies: A case evidence from rural coastal India

D’Silva

Verma

Magdaline

et al. 2021

Environmental Engineering Research

Self Cite

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“…All the physicochemical parameters and microbiological analysis indicated the quality of reuse water could satisfy the main regulations and guidelines. Verma, Daverey, and Sharma (2019) used uncoated fine sand (SSFu) and iron-coated fine sand (SSFco) for packing slow sand filters to treat municipal wastewater. Total suspended solid (TSS), chemical oxygen demand (COD), and phosphate removal efficiency had negative relations with the hydraulic loading rates for both filters.…”

Section: Granular Filtrationmentioning

confidence: 99%

Physico‐chemical processes

Yu¹,

Yao²,

Pan³

et al. 2020

Water Environment Research

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By summarizing 187 relevant research articles published in 2019, the review is focused on the research progress of physicochemical processes for wastewater treatment. This review divides into two sections, physical processes and chemical processes. The physical processes section includes three subsections , that is, adsorption, granular filtration, and dissolved air flotation, whereas the chemical processes section has five subsections , that is, coagulation/flocculation, advanced oxidation processes, electrochemical, capacitive deionization, and ion exchange.

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“…Deep purification of oil-containing wastewater from petroleum products and suspended substances is carried out in filters with granular loading [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Treatment of oil-containing wastewater of machine-building enterprises using pressure hydrocyclones

Busarev

Selyugin

2021

E3S Web Conf.

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Wastewater treatment of machine-building enterprises contaminated with oils, petroleum products and mechanical impurities is an urgent task. A promising direction in the field of treatment of such wastewater is the use of pressure hydrocyclones and hydrocyclone installations. The article presents the results of research on the treatment of oil-containing wastewater of machine-building enterprises in pressure of hydrocyclones, conducted on an experimental hydrocyclone installation, which includes the pressure hydrocyclone under test, a sedative tank, and tanks for receiving water from the upper and lower drains of the hydrocyclone. The studies were carried out in two stages: the first stage was used to determine the diameter of the pressure of hydrocyclone suitable for the treatment of oily wastewater, and the second stage was used to study its geometric characteristics. At the first stage, seven modifications of pressure hydrocyclones with a diameter of 40 to 100 mm with different diameters of the upper and lower drain pipes were tested. A 75 mm diameter hydrocyclone is recommended for the treatment of oily wastewater. At the second stage, nine pressure hydrocyclones with a diameter of 75 mm with different diameters of the upper and lower drain pipes were tested. As a result of the experiments, the design parameters of the hydrocyclone that showed the best results were determined. The results of the research were used in the design of industrial hydrocyclone installations.

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Wastewater treatment by slow sand filters using uncoated and iron-coated fine sand: impact of hydraulic loading rate and media depth

Cited by 18 publications

References 30 publications

Environmental resilience and sustainability through green technologies: A case evidence from rural coastal India

Environmental resilience and sustainability through green technologies: A case evidence from rural coastal India

Physico‐chemical processes

Treatment of oil-containing wastewater of machine-building enterprises using pressure hydrocyclones

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