Comparing the effectiveness of chitosan and conventional coagulants for coal wastewater treatment

María, Ana; Mayasari, Elisabet Dwi; Irawati, Utami; Zulfikurrahman,

doi:10.1088/1757-899x/980/1/012077

Cited by 13 publications

(7 citation statements)

References 13 publications

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“…Thus, a small amount of the dosage is already sufficient to destabilize particles. Similar results were also observed in the previous study [34][35][36], in which chitosan showed better effectiveness in a coagulation process at a lower dosage compared to the Al-based coagulants, with the additional advantages of being non-hazardous and more environmentally friendly [37,38].…”

Section: Response Surface Methodology (Rsm)supporting

confidence: 88%

Eco-Friendly Coagulant versus Industrially Used Coagulants: Identification of Their Coagulation Performance, Mechanism and Optimization in Water Treatment Process

Zaman

Rohani

Yusoff

et al. 2021

IJERPH

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The evaluation of complex organic and inorganic coagulant’s performances and their relationships could compromise the surface water treatment process time and its efficiency. In this work, process optimization was investigated by comparing an eco-friendly chitosan with the industrially used coagulants namely aluminum sulfate (alum), polyaluminum chloride (PAC), and aluminum chlorohydrate (ACH) in compliance with national drinking water standards. To treat various water samples from different treatment plants with turbidity and pH ranges from 20–826.3 NTU and 5.21–6.80, respectively, 5–20 mg/L coagulant dosages were varied in the presence of aluminum, ferum, and manganese. Among all, 10 mg/L of the respective ACH and chitosan demonstrated 97% and 99% turbidity removal in addition to the removal of the metals that complies with the referred standard. However, chitosan owes fewer sensitive responses (turbidity and residual metal) with the change in its input factors (dosage and pH), especially in acidic conditions. This finding suggested its beneficial role to be used under the non-critical dosage monitoring. Meanwhile, ACH was found to perform better than chitosan only at pH > 7.4 with half dosage required. In summary, chitosan and ACH could perform equally at a different set of optimum conditions. This optimization study offers precise selections of coagulants for a practical water treatment operation.

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Section: Response Surface Methodology (Rsm)supporting

confidence: 88%

Eco-Friendly Coagulant versus Industrially Used Coagulants: Identification of Their Coagulation Performance, Mechanism and Optimization in Water Treatment Process

Zaman

Rohani

Yusoff

et al. 2021

IJERPH

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“…These results indicated that the destabilization with chitosan is because of the presence of its amine groups that become protonated in an acid medium [43]. In this study, the protonation, where the carbohydrates increased was at pH 4.…”

Section: Optimization Of Harvesting Conditions (Fv Ft Settling Time A...mentioning

confidence: 46%

Direct biohydrogen production from chitosan harvested microalgae biomass and an isolated yeast

Suastes-Rivas,

Romero-Pineda,

Monje-Ramírez

et al. 2024

Energy Conversion and Management

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“…Chitosan from green scallop shells are also effective to remove COD, BOD, TSS levels in tofu industrial wastewater [25]. Coagulation by chitosan, alum, and PAC were all optimum within a range oh neutral pH [26]. Small dose of coagulant can inhibit coagulation process that is being lacking in floc cores, leaving more colloidal particles, so that the higher the dose of coagulant given, the colloidal particles combined to form more macrophages and leave fewer colloids in the final product [27].…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of Green Mussel Shells as a Natural Coagulant for Domestic Wastewater Treatment

Sari,

Ferizqo,

Adam

2023

j.teknokes

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Coagulation is one of the wastewater treatment processes. Aluminum sulfate is usually used as a chemical coagulant. On the other way, the use of alum can cause a new problem that was the inorganic residues produced are carcinogenic and can harm the environment and human health. Then people try to use natural materials such as chitosan as the coagulant. Chitosan can be produced from the skin of marine animals such as green mussels. This study aimed to determine the effectiveness of natural coagulant green mussel shells. The research method was an experimental study by testing the effectiveness of green mussel shells as a natural coagulant with one group post design. This research used small dose of chitosan that is 0,15 g/l until 0,4 g/l to know which one is the most effective to reduce turbidity and suspended solid. The sample in this study was domestic wastewater. The parameters were total suspended solids (TSS) and turbidity. The data were analyzed by the ANOVA test. The result showed that both TSS and turbidity were decreased by about 100% (14 mg/l to 0,65 mg/l) for optimum decreasing of TSS parameter and 73% (2.38 NTU to 0 NTU) for turbidity parameters. The optimal dose of natural coagulant green mussel shells for domestic wastewater was 0,4 g/l. The ANOVA test showed that there was an effect of green mussel shells coagulant dose on TSS and turbidity level (p-value = 0,000). The potential of using these green mussel shells as a coagulant is indeed very high. However, it takes a combination with other natural ingredients to make an effective and safe coagulant.

show abstract

Comparing the effectiveness of chitosan and conventional coagulants for coal wastewater treatment

Cited by 13 publications

References 13 publications

Eco-Friendly Coagulant versus Industrially Used Coagulants: Identification of Their Coagulation Performance, Mechanism and Optimization in Water Treatment Process

Eco-Friendly Coagulant versus Industrially Used Coagulants: Identification of Their Coagulation Performance, Mechanism and Optimization in Water Treatment Process

Direct biohydrogen production from chitosan harvested microalgae biomass and an isolated yeast

Effectiveness of Green Mussel Shells as a Natural Coagulant for Domestic Wastewater Treatment

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