Study on Flocculation Characteristics of Potato Starch Wastewater

Article Biochemistry & Molecular Biology

Synthesis of starch-based smart hydrogel derived from rice-cooked wastewater for agricultural use

Haradhan Kolya et al.

Summary: The synthesis of biodegradable hydrogel using rice-cooked wastewater, acrylamide, and 2-acrylamido-2-methylpropansulfonic acid showed promising characteristics such as high water absorbency, excellent water retention capability, and good biodegradability. The hydrogel also promoted the growth of chili plants, mung beans, and pea seeds. These findings have the potential to improve agricultural development in dry soil conditions.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2023)

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Article Engineering, Environmental

Aqueous phase reforming of starch wastewater over Pt and Pt-based bimetallic catalysts for green hydrogen production

Adriana S. Oliveira et al.

Summary: This study analyzes the use of aqueous phase reforming (APR) for producing green hydrogen from starch industry wastewater. It presents the direct conversion of high molecular weight biomass polymer in the wastewater, unlike previous literature focusing on low molecular weight substrates. The potential of different starch sources and catalyst types are evaluated, with PtRu/C and Pt/C catalysts achieving the highest H-2 yield values in APR experiments with synthetic wastewater. The flexibility of APR is demonstrated, and the performance is influenced by the starch source in real wastewaters.

CHEMICAL ENGINEERING JOURNAL (2023)

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Article Engineering, Environmental

Numerical simulation of a mechanical flocculation process with multi-chambers in series

Jie Zong et al.

Summary: This study aims to numerically investigate the inner states and overall performance of industrial-scale mechanical flocculators in series. The effects of the number and locations of flocculation chambers, sizes of the flocculation chamber connection, and operational combinations of impeller speeds are studied. With a decreasing number of flocculation chambers, the main vortexes and chemical reactions weaken, while small flocs form. The connection location of flocculation chambers directly determines the turbulent flow, thus influencing the key performance indicators.

WATER SCIENCE AND TECHNOLOGY (2023)

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Article Engineering, Multidisciplinary

Multimetal removal in aqueous medium using a potato starch/nopal mucilage copolymer: A study of adsorption kinetics and isotherms

David Choque-Quispe et al.

Summary: The aim of this study was to prepare copolymers using natural and biodegradable materials and evaluate their capacity to remove heavy metals from water. The copolymers demonstrated excellent solubility and strong adsorption ability, resulting in effective removal of multimetal pollutants from water. Therefore, the use of native potato starch and cactus mucilage allows the formulation of copolymers with high multimetal adsorption potential in aqueous systems.

RESULTS IN ENGINEERING (2023)

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Review Biochemistry & Molecular Biology

Chitosan-modified biochar: Preparation, modifications, mechanisms and applications

Nan Gao et al.

Summary: The chitosan-modified biochar composite has attracted increasing attention as a promising impurity adsorption material in the agricultural environment. This composite combines the advantages of biochar and chitosan, exhibiting improved surface functional groups, adsorption sites, stability, and adsorption properties. It has shown potential for decontamination of wastewater and soil from various pollutants including heavy metal ions, drug residues, dyes, phosphates, radionuclides, and perfluorochemicals. Further studies and exploration are needed for the chitosan-biochar composite.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

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Article Environmental Sciences

Advanced nitrogen removal from anaerobically pre-treated potato wastewater via partial nitritation-anammox in a continuous fed SBR

S. K. Tellez-Perez et al.

Summary: Partial nitritation-anammox process was successfully conducted in a continuous fed Sequencing Batch Reactor (cf-SBR) to remove nitrogen from anaerobic effluent of the potato industry at different loading rates, with nitrogen removal and ammonia oxidation reaching 62% and 74% respectively at the highest loading rate. The study also observed improvements in sludge characteristics and confirmed the presence of anammox bacteria through molecular analysis. The cf-SBR demonstrated its capability as a suitable and feasible technology for advanced nitrogen removal under partial nitritation and anammox conditions.

CHEMOSPHERE (2021)

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Article Chemistry, Applied