Tartaric acid and barium chloride pretreatment of distillery spent wash enhances biomethanation efficiency and methanogenic diversity: insights from mcrA amplicon sequencing.

S Vigneshraj, Pragadeesh Ayyamuthu Rajarathinam Uma, Alagirisamy Bharani, Subburamu Karthikeyan, Desikan Ramesh, P Vijayakumary, Rathinasamy Parimala Devi

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Article in World journal of microbiology & biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

S VigneshrajDepartment of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore, 641003, India.ORCID http://orcid.org/0009-0001-9185-7581

Pragadeesh Ayyamuthu Rajarathinam UmaHawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.ORCID http://orcid.org/0009-0009-4092-0681

Alagirisamy BharaniDepartment of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, 641003, India.ORCID http://orcid.org/0000-0002-6578-3558

Subburamu KarthikeyanCentre for Post-Harvest Technology, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, India.ORCID http://orcid.org/0000-0003-1003-3546

Desikan RameshDepartment of Renewable Energy Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, India.ORCID http://orcid.org/0000-0002-3870-1393

P VijayakumaryDepartment of Renewable Energy Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, India.ORCID http://orcid.org/0000-0001-7933-8837

Rathinasamy Parimala DeviDepartment of Renewable Energy Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, 641003, India. parimaladevi@tnau.ac.in.

Funding

Government of India -ICAR- Central Institute of Agricultural Engineering (CIAE), Bhopal - All India Coordinated Research Project (AICRP) on Energy in Agriculture and Agro-based Industries (EAAI) D32AF (COP)

6 · The paper itself

Abstract

The distillery sector discharges approximately 40 billion litres of distillery spent wash (DSW) annually, a recalcitrant pollutant characterised by high organic loading, excessive potassium concentration (> 8000 ppm), elevated sulphate levels (> 600 ppm), heavy metals, high electrical conductivity (EC), and acidic pH. The indiscriminate discharge of untreated distillery spent wash presents a profound hazard to ecosystems and environmental integrity. Despite its considerable potential as an efficient feedstock for biogas production, the effluent's inhibitory components, mainly potassium and sulphate, require a strategic remediation strategy. This study elucidates the efficacy of selective chemical pretreatment using 1 M tartaric acid (1:1 v/v) and barium chloride (9.2 g L

Indexed as

Barium CompoundsChloridesMethaneTartratesAnimalsBiofuelsHydrogen-Ion ConcentrationPotassiumSulfatesWaste Disposal, Fluidbarium chlorideBarium CompoundsBiofuelsChloridesMethanePotassiumSulfatestartaric acidTartratesBarium chloride precipitationBiomethanationInhibitorsmcrAMethanogensTartaric acid precipitation

Identifiers

PMID42830363

DOI10.1007/s11274-026-05311-3

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.