Enhancing Adsorption Capacity of Clay and Application in Dye Removal from Waste Water

Ogunmodede, O.T; Adebayo, O.L.; Ojo, A. A.

doi:10.18052/www.scipress.com/ilcpa.39.35

Cited by 6 publications

(4 citation statements)

References 18 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Results demonstrate that the particulate part of the organics is removed by the physical straining of the porous clay bricks surface whereas the dissolved organic component was expected to be removed via adsorption on to the surface of clay bricks. These results of the present study are in agreement with a pervious study that reported some sorption capabilities of natural clay for the removal of organics from wastewater [46]. The performance of the brick was found to be relatively poor for the removal of nutrients, i.e., 3.4%, 42.8%, 12.5%, 23.9 and 23.4%, removals for TN, NH 3 -N, NO 2 -N, and NO 3 -N, and PO 4 -P. Removal of some heavy metals including Mn, Cu, and Zn from stormwater was achieved whereas Ba and Cr were not removed during filtration.…”

Section: Stormwater Treatment Efficiencysupporting

confidence: 93%

Development of Rice Bran Mixed Porous Clay Bricks for Permeable Pavements: A Sustainable LID Technique for Arid Regions

et al. 2021

View full text Add to dashboard Cite

Permeable pavement provides sustainable solutions for urban stormwater management. In this research, the potential of rice bran mixed porous clay bricks were evaluated for permeable pavements. Physical, mechanical and hydrological properties along with stormwater treatment capabilities of the brick samples were assessed. The study found that ratio of rice bran and clay soil has significant impacts on the properties of the produced bricks. Water adsorption and porosity increased with increasing rice bran ratio. Compressive strength of brick samples decreased from 29.6 MPa to 6.9 MPa when the ratio of rice bran was increased from 0% to 20%. The permeability coefficient increased from 4 × 10−4 to 1.39 × 10−2 mm/s with the increase in rice bran from 0% to 30%. The preamble clay bricks were efficient to remove turbidity, total suspended solids (TSS), five days’ biochemical oxygen demand (BOD5), and heavy metals (Mn, Cu, and Zn) from stormwater to meet the World Health Organization (WHO) standard for wastewater reuse application. The bricks with ≤10% of rice bran achieved the American Society for Testing and Materials (ASTM) standard of the desire compressive strength and permeability coefficient for pedestrian and light traffic pavements. The porous bricks prepared in this study can be used to construct permeable pavements and would be a sustainable low impact developments technique for stormwater management in urban areas.

show abstract

Section: Stormwater Treatment Efficiencysupporting

confidence: 93%

Development of Rice Bran Mixed Porous Clay Bricks for Permeable Pavements: A Sustainable LID Technique for Arid Regions

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Therefore, the particulate portion of organics was removed by the physical straining of the micro-porous clay brick layer, whereas the dissolved organics portion was removed through adsorption onto the porous layers of the natural clay bricks. A previous study by Ogunmodede et al [37] also reported that natural clay possesses some sorption capability for organics in wastewater.…”

Section: Removal Of Organicsmentioning

confidence: 89%

Evaluating Permeable Clay Brick Pavement for Pollutant Removal from Varying Strength Stormwaters in Arid Regions

Shafiquzzaman

Alqarawi

Haider

et al. 2022

Water

View full text Add to dashboard Cite

Permeable pavement is a low impact development technology for stormwater (SW) runoff control and pollutant removal. The strength of SW depends on land use of the catchment, e.g., semi-urban vs. industrial. The performance (in terms of pollutants removal) of permeable clay bricks (PCB) has not been adequately assessed for SW of varying strengths. For using the permeable clay bricks as a pavement surface layer, the present research investigates its pollutant removal capacity through SW infiltration using a laboratory setup. SW samples of two different strengths, i.e., high polluted stormwater (HPSW) and less polluted stormwater (LPSW), were tested for a pavement system consisting of the clay brick layer on top of a coarse gravel support layer. The tests were performed at a rainfall intensity of 12.5 mm/h (for a 10-year return period in Buraidah, Qassim) to evaluate the suitability of PCB for the arid and semi-arid regions. The experiments revealed that PCB became fully saturated and achieved a steady-state outflow condition after 10 min of rainfall. Irrespective of contamination level, the pollutant removal efficiency was found to be similar for both HPSW and LPSW. High TSS (>98%) and turbidity (>99%) removals were achieved for both strengths, while BOD5 (78.4%) and COD (76.1%) removals were moderate. Poor to moderate nutrient removal, 30.5% and 39.1% for total nitrogen (TN) and 34.7% and 31.3% for total phosphorus (TP), respectively for HPSW and LPSW, indicates an adsorptive removal of nutrients in the system. Heavy metal removal efficiency ranged from 6.7% to 94%, with higher removals archived for Fe, Mn, Se, and Pb. The study provides insights into the role of PCB as a surface layer in the permeable pavement for pollutant removal. The study also establishes the guidelines for the optimal permeable pavement design to deal with SW of varying contamination levels. Permeable clay bricks showed the potential to be used as a sustainable LID technology for arid regions.

show abstract

“…Furthermore, higher organics (more than 75% of both BOD and COD) removals suggest that some portion of dissolved organics was also removed through adsorption on to the natural clay based ceramic filter used in this study. A previous study by Ogunmodede et al [52] also reported that natural clay has some sorption capabilities for organics from wastewater. The percentage removals for turbidity, TSS, and TDS presented in Table 3 are comparable with the other LID technologies [53,54].…”

Section: Removal Of Turbidity Tss and Tdsmentioning

confidence: 90%

Evaluation of a Low-Cost Ceramic Filter for Sustainable Reuse of Urban Stormwater in Arid Environments

Shafiquzzaman

Haider

Ghazaw

et al. 2020

Water

View full text Add to dashboard Cite

Sustainable reuse of urban stormwater is inevitable in the fight against water crises in arid regions. This research aimed to evaluate the effectiveness of a low-cost ceramic filtration process for reuse applications of urban stormwater. Stormwater was collected from a storage pond located in Buraydah (Qassim, Saudi Arabia) for laboratory experiments. The filtration tests were performed in a continuous mode with constant pressure using a low-cost ceramic filter made of clay soil and rice bran. The removal rates of the contaminants (heavy metals) as well as the turbidity, suspended solids, and nutrients of the stormwater were assessed. High removal efficiencies for turbidity (97.4%), suspended solids (97.0%), BOD 5 (78.4%), and COD (76.1%) were achieved while low removals were achieved for the nutrients: 19.7% for total nitrogen, 25.3% for nitrate, and 8.6% for phosphate. Removal efficiencies ranged between 36.2% and 99.9% for the heavy metals, i.e., iron, manganese, lead, zinc, nickel, copper, cadmium, selenium, and barium. Contaminant removal rates observed for the ceramic filter were also compared with the alum coagulation process operated in a continuous mode at an optimum alum dose of 50 mg/L. Similar removal behaviors for removal of turbidity, suspended solids, organics, nutrients, and heavy metals suggested that both ceramic filtration and alum coagulation can be effectively used for stormwater treatment. Effluent qualities of both the ceramic filter and alum coagulation met the standards, for recycling/reuse of wastewater, set by the Kingdom of Saudi Arabia and World Health Organization for unrestricted irrigation and toilet flushing. The study results revealed that ceramic filtration is a low-cost, energy efficient, and easy to maintain technology which can be complimentary to best management practices for stormwater.Urban stormwater runoff transports a wide range of pollutants (generated by anthropogenic and biogenic activities) into the receiving water bodies (i.e., retention ponds and natural drains) that exceed the maximum contamination limits set for recycling as well as groundwater recharge. Stormwater runoff can be polluted by organics, nutrients such as phosphorus and nitrogen, hydrocarbons, oils, and heavy metals originating from fertilizers, automobile emissions, agriculture, soil erosion, yard waste, and detergents [4][5][6]. Moreover, stormwater can be contaminated by intrusion of emerging pollutants from cross-contamination or overflows of municipal sewers [7,8].Physical, chemical, and microbiological characteristics of stormwater usually do not comply with the desired water quality standards either for non-potable water applications or artificial groundwater recharge [9][10][11]. Several low-impact design (LID) technologies including bioswales, constructed wetlands, vegetated filter strips, and media filters have been employed for stormwater management [12][13][14]. Some of the LID techniques such as bioswales, constructed wetlands, and vegetated filter strips simulate the use of natural sys...

show abstract

Enhancing Adsorption Capacity of Clay and Application in Dye Removal from Waste Water

Cited by 6 publications

References 18 publications

Development of Rice Bran Mixed Porous Clay Bricks for Permeable Pavements: A Sustainable LID Technique for Arid Regions

Development of Rice Bran Mixed Porous Clay Bricks for Permeable Pavements: A Sustainable LID Technique for Arid Regions

Evaluating Permeable Clay Brick Pavement for Pollutant Removal from Varying Strength Stormwaters in Arid Regions

Evaluation of a Low-Cost Ceramic Filter for Sustainable Reuse of Urban Stormwater in Arid Environments

Contact Info

Product

Resources

About