Effects of using Tamarindus indica Seeds as a natural coagulant aid in landfill leachate treatment

doi:10.30955/gnj.002462

Cited by 17 publications

(2 citation statements)

References 19 publications

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“…The considerable reduction of turbidity (100%), TS (91.55%), and TDS (95.21%) in all the AW samples analyzed and underscored the natural reductive ability in the Azolla pinnata fern, not only as hyperaccumulator to metals but also the coagulative tendency to trap particles. This observation was supported by Aziz et al (2018) in their studies. There was a slight reduction in temperature with very low values, 2.04% (AW), 1.01% (DW), 0.99% (MW) and 8.84% (IW).…”

Section: Resultssupporting

confidence: 65%

Development and performance evaluation of low-cost wastewater treatment plant

Akinbile

Ikuomola

Ralphael

2018

Sustain. Water Resour. Manag.

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A pilot-scale wastewater treatment plant was developed for the purpose of treating wastewaters in southwestern Nigeria. The plant, mounted on a roller frame was divided into three sections, viz. wastewater holder, purification chamber and treated water collector. The purification chamber contained three sets of strainers with locally sourced materials which include Azolla pinnata fern, fine sand, chlorine pellets, alum cubes and palm kernel shell charcoal (PKSC). The performance of the treatment plant was evaluated using four different wastewater (WW) sources which were industrial (IW), municipal (MW), domestic (DW) and aquaculture (AW) wastewaters. Sixteen physicochemical parameters and ten metals were monitored in the four WW samples which included temperature, turbidity, electrical conductivity (EC), pH, total suspended solids (TSS), total dissolved solids (TDS), total solid (TS), acidity as CaCO 3 , total hardness, total phosphorus (TP), total nitrogen (TN), ammoniacal nitrogen, dissolved oxygen (DO), chemical oxygen demand (COD), biochemical oxygen demand (BOD 5), fecal coliform, Escherichia coli and total coliform count. The metals were Na, K, Ca, Mg, Zn, Fe, Pb, Cu, Cd, and Mn. Water quality analysis was done using standard laboratory procedures and results obtained were subjected to statistical analysis. From the results, 100% removal efficiencies were obtained in some heavy metals such as cadmium (Cd) and manganese (Mn) and in parameters such as turbidity, TP, and TN after passing through the treatment plant. The presence of pathogens and microorganisms that were also reduced does not in any way affect its use for agricultural purposes. All other parameters reduced appreciably with results which were statistically significant at P < 0.05. This indicated the high efficiency of the treatment plant in the removal of the water pollutant and heavy metals from the four WW sources considered.

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Section: Resultssupporting

confidence: 65%

Development and performance evaluation of low-cost wastewater treatment plant

Akinbile

Ikuomola

Ralphael

2018

Sustain. Water Resour. Manag.

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“…Although this method is economical and easy to handle, the mixture and compression of various types of municipal solid waste (MSW) have initiated leachate generation, which is relatively complex and difficult to remediate. Besides having a strong color and bad odor, leachate also contains considerable hazardous compounds such as organic matter, ammonia nitrogen, heavy metals, and chlorinated organic as well as inorganic matters, which are a major threat to groundwater and the surrounding environment (Aziz et al, 2018). More than 200 organic compounds have been discovered in leachate, and about 35 elements have been classified as harmful to the ecosystem and human life (Zakaria, 2020).…”

Section: Introductionmentioning

confidence: 99%

Optimization of stabilized anaerobic landfill leachate treatment using ozonation with metallic compound using response surface methodology

Zakaria,

Aziz,

Mohamad

et al. 2023

Water Environment Research

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Malaysia encounters a consistent rise in the generation of solid waste and leachate on a daily basis. It should also be noted that leachate has a low degree of biodegradability (BOD5/chemical oxygen demand [COD]), as shown by its BOD5/COD ratio. Its high toxicity levels significantly threaten the environment, water bodies, and human well‐being. High concentrations of COD, color, and ammoniacal nitrogen (NH3‐N) in leachate prevent this wastewater from being allowed to be discharged directly into the water body. Therefore, an effective process to remove the pollutant is desired. The aims of this study are to investigate the performance of ozonation with two metallic compounds, ZrCl4 and SnCl4, and optimize their performance using response surface methodology (RSM). In this study, the performance of ozonation with ZrCl4 (O3/ZrCl4) recorded better pollutant removals compared with the ozonation with tin tetrachloride (O3/SnCl4), as seen in the removals of 99.8%, 93.5%, and 46.3% for color, COD, and NH3‐N, respectively. These removals were achieved by following the experimental model (optimum experiment condition) generated by RSM at O3 dosage of 31 g/m3, COD and ZrCl4 dosage ratio (COD, mg/L/ZrCl4, mg/L) of 1:1.35, with the pH solution of 8.78 and reaction time of 89 min. The R2 of each parameter for this model was recorded as 0.999 (COD), 0.999 (color), and 0.998 (NH3‐N), respectively. These data indicated that the model is well fitted as the predicted data by statistical calculation and in good agreement with the actual data.Practitioner Points The performance of O3/ZrCl4 and O3/SnCl4 was examined for remediate stabilized landfill leachate. The performance of O3/ZrCl4 and O3/SnCl4 was optimized using RSM, and a set of experimental models was generated and tested. O3/ZrCl4 recorded the higher removal of COD, color, and NH3‐N compared with O3/SnCl4. At best condition, both methods recorded removal as 89% to 99.8% of pollutants in leachate and product clear effluent. This finding gives a new approach to treat landfill leachate effectively and efficiently.

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Comparison performance of coagulation flocculation process and combination with ozonation process of stabilized landfill leachate treatment

Zakaria

Aziz

Mohamad

2022

Water Environment Research

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Landfill leachate is well known as a hazardous byproduct from dumpling sites that has a negative impact on the environment and human life. Therefore, an effective treatment is imperative to overcome this issue. This research study investigates the effectiveness of zirconium tetrachloride (ZrCl4) and tin tetrachloride (SnCl4) as a coagulant in leachate treatment. Two parameters selected as a performance indicator in this study are color and chemical oxygen demand (COD). The data obtained showed that SnCl4 performed well as a coagulant with removal percentages of color and COD, which are 97% and 77%, respectively. Furthermore, the potential of integrated treatment using ozonation (O3) and the coagulation‐flocculation process was also investigated. Four sequences of integrated treatment setup for this study were ozonation followed by jar test (ZrCl4 as a coagulant), ozonation followed by jar test (SnCl4 as a coagulant), jar test (ZrCl4 as a coagulant) followed by the ozonation process, and jar test (SnCl4 as a coagulant) followed by the ozonation process. The experimental data showed that the combination treatment of SnCl4 as a coagulant (jar test) followed by the ozonation process had recorded the highest removal of color (97.1%) and COD (88%) compared to other sequences. Moreover, the biodegradability ratio of this sequence also improved from 0.03 to 0.28, compared with other methods. Comparatively, integrated treatment is more effective in treating stabilized landfill leachate compared to the coagulation flocculation process alone. Practitioner Points Stabilized landfill leachate is difficult to be treated by natural coagulants or biological process. SnCl4 performed well as a coagulant in removing COD and colour from landfill leachate compared to ZrCl4. However, too much usage of SnCl4 potentially generate secondary pollutant. Therefore, combination with O3 as pre‐treatment is investigated. Combination treatment of SnCl4 ( as coagulant) with O3 had recorded the highest removal of colour (97.1%) and COD (88%). The biodegradability ratio of this sequence also improved from 0.03 to 0.28.

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Effects of using Tamarindus indica Seeds as a natural coagulant aid in landfill leachate treatment

Cited by 17 publications

References 19 publications

Development and performance evaluation of low-cost wastewater treatment plant

Development and performance evaluation of low-cost wastewater treatment plant

Optimization of stabilized anaerobic landfill leachate treatment using ozonation with metallic compound using response surface methodology

Comparison performance of coagulation flocculation process and combination with ozonation process of stabilized landfill leachate treatment

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