Dioscorea hispida Starch as a Novel Natural Coagulant in Textile Wastewater Treatment

Yusoff, Mohd Suffian; Juni, Farrandie; Ahmed, Zaber; Azaiza, Motasem; Aziz, Hamidi Abdul

doi:10.5614/j.eng.technol.sci.2021.53.2.7

Cited by 8 publications

(2 citation statements)

References 32 publications

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“…Diascora hispida is a plant found in the tropic and subtropic regions of the world, especially in West Africa, the Caribbean, and Southeast Asia [110]. Diascora hispida was used as a natural coagulant to treat textile wastewater effluent and could achieve an efficiency of 28%, 94% and 64% at an optimum pH [111]. Banana has the highest production amount in Southeast Asia [112], and a study conducted on banana peels as a natural coagulant showed the removal of 88% of turbidity under optimum conditions [16].…”

Section: Use Of Natural Coagulants In Southeast Asiamentioning

confidence: 99%

Microplastic Removal in Wastewater Treatment Plants (WWTPs) by Natural Coagulation: A Literature Review

Reza,

Mohamad Riza,

Sheikh Abdullah

et al. 2023

Toxics

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Urban industrialization has caused a ubiquity of microplastics in the environment. A large percentage of plastic waste originated from Southeast Asian countries. Microplastics arising from the primary sources of personal care items and industrial uses and the fragmentation of larger plastics have recently garnered attention due to their ubiquity. Due to the rising level of plastic waste in the environment, the bioaccumulation and biomagnification of plastics threaten aquatic and human life. Wastewater treatment plant (WWTP) effluents are one of the major sources of these plastic fragments. WWTPs in Southeast Asia contribute largely to microplastic pollution in the marine environment, and thus, further technological improvements are required to ensure the complete and efficient removal of microplastics. Coagulation is a significant process in removing microplastics, and natural coagulants are far superior to their chemical equivalents due to their non-toxicity and cost-effectiveness. A focused literature search was conducted on journal repository platforms, mainly ScienceDirect and Elsevier, and on scientific databases such as Google Scholar using the keywords Wastewater Treatment Plant, Coagulation, Microplastics, Marine Environment and Southeast Asia. The contents and results of numerous papers and research articles were reviewed, and the relevant papers were selected. The relevant findings and research data are summarized in this paper. The paper reviews (1) natural coagulants for microplastic removal and their effectiveness in removing microplastics and (2) the potential use of natural coagulants in Southeast Asian wastewater treatment plants as the abundance of natural materials readily available in the region makes it a feasible option for microplastic removal.

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Section: Use Of Natural Coagulants In Southeast Asiamentioning

confidence: 99%

Microplastic Removal in Wastewater Treatment Plants (WWTPs) by Natural Coagulation: A Literature Review

Reza,

Mohamad Riza,

Sheikh Abdullah

et al. 2023

Toxics

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“…However, recent findings demonstrated that applying unmodified starch as a single flocculant requires a greater dosage to achieve high removal performance [12]. Yusof et al [13] employed unmodified Dioscorea hispida starch through a coagulation process and discovered that the maximum COD reduction was only 22% using a large dosage of 2500 mg/L in wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Effect of dual flocculant by unmodified manihot esculenta starch and aluminium sulphate on the removal of chemical oxygen demand optimized by response surface methodology

Rahmat,

Othman,

Ahmad

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Applying inorganic metal salt-based aluminium sulphate (Al2(SO4)3) or alum in wastewater treatment has gained many concerns regarding the impact on health and environmental implications. Due to the negative consequences, incorporating inorganic and natural flocculants in the coagulation-flocculation process is the alternative way to reduce undesirable effects. In this study, an evaluation performance of Manihot esculenta (ME) starch and alum as a dual flocculant was conducted to remove chemical oxygen demand (COD) in the optimum weight ratio of alum/starch = 0.06. The optimization of coagulation-flocculation by the optimal (custom) design, response surface methodology (RSM) presented that applying a dual flocculant improved the COD removal efficiency by up to 93% compared to a single coagulant (alum) of 85%. Besides the performance of COD removal increased, the dosage of the chemical coagulant was reduced by up to 64% at the optimum condition of 18 mg/L alum dosage, 307 mg/L starch dosage, pH 9, and 27 mins settling time. The analysis of variance (ANOVA) indicated that the quadratic model was significantly developed with a p-value < 0.05. The results were justified by a high coefficient of determination (R2 alum = 0.9641) and (R2 dual flocculants = 0.9335) using single and dual flocculants, respectively. The findings supported ME starch as an alternative approach in minimizing chemical coagulants in wastewater treatment.

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Green Materials Synthesis for Wastewater Treatment

Gogoi¹,

Choudhury²

2022

Encyclopedia of Green Materials

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Dioscorea hispida Starch as a Novel Natural Coagulant in Textile Wastewater Treatment

Cited by 8 publications

References 32 publications

Microplastic Removal in Wastewater Treatment Plants (WWTPs) by Natural Coagulation: A Literature Review

Microplastic Removal in Wastewater Treatment Plants (WWTPs) by Natural Coagulation: A Literature Review

Effect of dual flocculant by unmodified manihot esculenta starch and aluminium sulphate on the removal of chemical oxygen demand optimized by response surface methodology

Green Materials Synthesis for Wastewater Treatment

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