Bioflocculants in anaerobic membrane bioreactors: A review on membrane fouling mitigation strategies

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150260 - 150260

Опубликована: Март 8, 2024

Anaerobic membrane bioreactors hold immense promise for wastewater treatment owing to their elevated organic load tolerance, cost-effectiveness, and potential energy recovery. Nevertheless, fouling is a significant impediment its widespread implementation. This review focuses on utilizing eco-friendly bioflocculants control in anaerobic bioreactors. Initially, it provides comprehensive overview of the mechanisms mitigating fouling. Subsequently, examines performance, mechanisms, influencing factors reducing by AnMBRs. Charge density, molecular weight, bioflocculant dosage, feed water properties, operational parameters can affect efficacy. The primary mechanism helpful reduce concentrations Extracellular Polymeric Substances (EPS) Soluble Microbial Products (SMP) Additionally, conventional methods are introduced compared with bioflocculants, emphasizing notable advantages, such as biodegradability, low toxicity, availability, cost-effectiveness. In conclusion, outlines challenges associated elucidates directions future development.

Язык: Английский

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Efficient and eco-friendly treatment of wastewater through sustainable purification using agricultural waste and coagulation kinetic modelling

Frontiers in Environmental Science, Год журнала: 2024, Номер 11

Опубликована: Янв. 9, 2024

This scientific manuscript presents a comprehensive investigation into the purification of municipal sewage water through utilization agricultural waste materials [ Arachis hypogaea shells (AHS), Triticum aestivum straw (TAS), and Gossypium herbaceum (GHS)]. The treatment process involved modified approach with 24 hs aeration addition 1 gm biomaterials. performance bio-coagulant was evaluated by monitoring reduction physico−chemical parameters. AHS exhibited remarkable turbidity removal efficiency 93.37%, supported pseudo−first pseudo−second−order kinetic modelling. application significantly reduced key parameters, including solids (up to 70%–80%), dissolved oxygen (DO) (50%), biological demand (BOD) chemical (COD) 90%). Principal Component Analysis (PCA) showed significant positive loading PC1 (84.71%) that influencing dual treatments wastewater. Statistical analysis ( p ≤ 0.05) confirmed effectiveness biomaterials in compared pre−treated water. coagulation pseudo−first−order modelling also revealed against findings underscore significance utilizing for sustainable efficient water, addressing pollution enhancing wastewater processes.

Язык: Английский

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Development of a natural coagulant from Albizia lebbeck seeds for application in turbidity removal from water intended for human consumption

South African Journal of Chemical Engineering, Год журнала: 2025, Номер unknown

Опубликована: Май 1, 2025

Язык: Английский

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From Natural to Industrial: How Biocoagulants Can Revolutionize Wastewater Treatment

Processes, Год журнала: 2025, Номер 13(6), С. 1706 - 1706

Опубликована: Май 29, 2025

The environmental impacts of industrial processes have increased the demand for sustainable alternatives in wastewater treatment. Conventional chemical coagulants, though widely used, can generate toxic residues and pose health risks. Biocoagulants, derived from natural renewable sources, offer a biodegradable eco-friendly alternative. This review explores their potential to replace synthetic coagulants by analyzing origins, mechanisms action, applications. A total 15 studies published between 2020 2025 were analyzed, all focused on wastewater. These demonstrated that biocoagulants achieve similar, or superior, removal turbidity (>67%), solids (>83%), heavy metals effluents food, textile, metallurgical, paper industries. While raw materials are often inexpensive, processing costs may increase production expenses. However, life cycle assessments suggest long-term advantages due reduced sludge impact. textile industry case study showed 25% reduction improved biodegradability using plant-based biocoagulant compared aluminum sulfate. Transforming this waste into inputs treatment not only reduces negative disposal but also promotes integrated management aligned with circular economy cleaner principles. concludes constitute viable alternative

Язык: Английский

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Evaluation of plant based natural coagulants for surface water treatment of Pratapgarh District Uttar Pradesh, India

Journal of Tropical Forestry and Environment, Год журнала: 2024, Номер 13(01)

Опубликована: Янв. 23, 2024

The efficacy of three plant-based natural coagulants, namely papaya seed powder, banana peel and lemon was evaluated in this study for their ability to remove high electric conductivity turbidity, hardness, fluoride, nitrate from surface water. experiments were conducted at room temperature without any adjustment the initial pH. results indicated that powder exhibited highest turbidity removal rate, achieving 55.6% when used a dosage 0.4 g/L. Furthermore, demonstrated excellent efficiency fluoride nitrate, with 85% observed same dosage. Lemon also significant effectiveness, 60% removal. Papaya proved be most efficient coagulant removing demonstrating rate 69.66%. further revealed noteworthy linear relationship between as evidenced by correlation coefficients (R2) ranging 0.67 0.88. Similar relationships removals, R2 values 0.68 0.8. An additional advantage using these coagulants they did not cause pH alteration treated Moreover, Fourier-transform infrared (FTIR) analysis peels presence functional groups such carboxylic acid, hydroxyl, aliphatic amines. These likely play crucial role facilitating coagulation flocculation neutralizing charges impurities water. This suggests inexpensive hold promise water treatment, offering viable alternative conventional methods.

Язык: Английский

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Recent advancements in utilizing plant-based approaches for water and wastewater treatment technologies

Cleaner Water, Год журнала: 2024, Номер 2, С. 100030 - 100030

Опубликована: Авг. 10, 2024

Overpopulation, expansion of agricultural practices, misuse water resources, industrialization, and urbanization are among the major factors that have a big impact on quantity quality water. It has been projected around 4 billion humans would lack access to pure by 2025. Thus, for sustainable lifestyle, it is imperative improve quality. Conventional wastewater treatment technologies involve various chemical processes such as coagulation disinfection physical methods filtration adsorption. For these processes, chemicals being used alum lime in coagulation, chlorine bromine disinfection, activated alumina, silica gel zeolites However, high procurement cost display negative impacts environment human health, due which plant based coagulants, adsorbents, disinfectants now majorly tested methods. The objective this review article provide recent update derived wastewater. This critically examines conventional cleaning discusses their mechanisms. Prior study, plant-based mainly separately reviewed, but proper combined study lacking. present manuscript highlights procedure plants first then all three sequentially. may be useful development an efficient method employing disinfectants. will also beneficial researchers who actively working

Язык: Английский

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The influence of preparation and pretreatment on the physicochemical properties and performance of plant-based biocoagulants in treating wastewater

Environmental Advances, Год журнала: 2023, Номер 14, С. 100441 - 100441

Опубликована: Окт. 23, 2023

Biocoagulants have gained attention as an alternative to chemical coagulants in water and wastewater treatment due their ability remove pollutant parameters such turbidity, suspended solids, color, organic compounds. Plant-based biocoagulants are currently the most promising abundant availability reliable performance. A proper preparation of plant-based is required ensure active compounds from plants can be extracted. Plant raw materials prepared into using drying grinding, extraction, purification. In mechanical preparation, grinding exhibit great influence on performance removal moisture higher contact with carrier medium during dissolution. smaller biocoagulant's size resulted up 78% turbidity. oil needs removed before extracting ingredients avoid low compound extraction yields. The defatting Moringa oleifera seeds showed 18% protein content. Salt alcohol extractions were mentioned superior methods obtain carbohydrate compared a 5% increment turbidity removal. Preparation pretreatment protocols properties biocoagulants. Further extension research should address problems initial characterization plant material, standard protocols, real-scale application

Язык: Английский

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Efficiency of sustainable green coagulants to remove turbidity

IOP Conference Series Earth and Environmental Science, Год журнала: 2024, Номер 1307(1), С. 012012 - 012012

Опубликована: Фев. 1, 2024

Abstract In wastewater treatment systems, coagulation is important to enhance turbidity removal in terms of physicochemical treatment. this study, the aim use plant leaves and seed as sustainable environment strategy treat turbid water. Four ( Alhagi graecorum, Beta vulgaris L., Capparis spinosa, Medicago sativa ), stem (Beta L .) two fruit seeds (Phoenix dactylifera Prunus armeniaca ) are used all local Iraq. The experiments were run with different green coagulant concentrations 0, 1000, 3000, 5000, 7000 mg/L test 500 NTU. best results 1000 mg/ spinosa (45%), (49%), . (leaves 47%, 56%), Phoenix (45%). While graecorum reached 67, 62% respectively. This support concept by using natural coagulants available ecosystem.

Язык: Английский

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Performance analysis of plant-based coagulants in water purification: a review

Discover Water, Год журнала: 2024, Номер 4(1)

Опубликована: Ноя. 21, 2024

The working conditions during the preparation and extraction of solvents from various plant parts significantly improved plant-based coagulants used in water treatment. study reviews performance reducing turbidity, total hardness, heavy metals, microorganisms, emphasizing dosage variations across different types. Utilizing specific keywords for searching status organizing data into descriptive analysis were applied. process results involved particle size, mixing speeds, drying temperature time presented. Again, indicated average turbidity removal ranged between 78 87.3%, metal 59 to 98%, hardness reduction 15.45 43.3%, microbial elimination 91 92% using solid levels 0.5 10.3 g/L liquid level 2 54 mL/L, respectively. actionable suggestions implementing up scaled treatment systems Therefore, findings would support optimization plants commercialization applications.

Язык: Английский

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Investigation on the removal of contaminants from washing machine discharge using Strychnos potatorum (clearing nut) – A potential purifying agent

Heliyon, Год журнала: 2023, Номер 9(9), С. e19869 - e19869

Опубликована: Сен. 1, 2023

The objective of the present study is to develop eco-friendly purifying agents from natural materials, Strychnos potatorum (SP) - a coagulant. seeds SP were used for wastewater treatment (washing machine effluent). Physico-chemical parameters like turbidity, total dissolved solids (TDS), electrical conductivity (EC), pH, calcium (Ca2+), magnesium (Mg2+) and phosphate (PO43-) tested data obtained compared with BIS standards. In current work, physical chemical have been examined determine quality water washing discharge, before after (coagulation) using seeds. testing procedure was carried out Jar test coagulant mass 1000 mg/L rapid mixing at 150 rpm 5 min, slow 30 25 min settling period 1 h. Coagulation results reported use seeds, where effectiveness removing turbidity PO43- determined be 81.54 41.45%. presence various functional groups in seed assessed by fourier transform infrared (FT-IR) spectroscopy. Qualitative identification phytochemical constituents extract this species also out. experimental findings strongly highlighted ability remove wastewater.

Язык: Английский

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