1. Overview
Sodium acetate (CH₃COONa) is a readily biodegradable organic salt widely used as a biological carbon source in wastewater treatment processes. It provides a quick efficient, and controllable source of organic carbon to promote microbial growth, particularly in biological nutrient removal (BNR) systems.
In essence, it fuels the microorganisms that remove nitrogen and phosphorus from wastewater — helping treatment plants meet stringent discharge norms.
2. Chemical & Biochemical Characteristics
Property Details
Chemical Formula CH₃COONa
Molecular Weight 82.03 g/mol
Carbon Content ~39% (as organic carbon)
Solubility Highly soluble in water
Biodegradability >95% (readily biodegradable)
pH (1% solution) ~7–9
Microorganisms convert sodium acetate into acetic acid in aqueous media, which is rapidly assimilated into cell biomass, CO₂, and energy (ATP) via the TCA cycle.
3. Role as a Carbon Source in Biological Treatment
a) Denitrification
Denitrifying bacteria use acetate as an electron donor to convert nitrates (NO₃⁻) and nitrites (NO₂⁻) into nitrogen gas (N₂).
Reaction example:
Result: Efficient nitrogen removal with minimal residual organic matter.
b) Enhanced Biological Phosphorus Removal (EBPR)
Polyphosphate-accumulating organisms (PAOs) use acetate as a carbon source to store energy (as polyhydroxyalkanoates, PHAs).
During aerobic phases, PAOs use this stored energy to uptake phosphorus from water, thus reducing PO₄³⁻ levels.
c) BOD Balancing
Provides readily biodegradable carbon (rbCOD) to balance carbon-to-nitrogen ratio (C:N ratio) for optimal microbial metabolism.
Typical target ratio: C:N:P = 100:5:1
4. Application Guidelines
Parameter Recommended Range
Form Crystalline solid or 40% aqueous solution
Dosage 1–4 g sodium acetate per g NO₃⁻–N removed
Injection point Anoxic or anaerobic zone (before aeration)
pH impact Minimal (buffering effect)
Storage Stable, non-corrosive, easy to dose
For automation, it can be dosed using peristaltic or diaphragm pumps based on online nitrate sensors or flow-proportional control.
6. Industrial Applications
Municipal Sewage Treatment Plants (STPs)
Pharmaceutical & Biotech ETPs
Food & Beverage Industry Effluents
Textile Dyeing Wastewater (to enhance denitrification)
Zero Liquid Discharge (ZLD) Systems
Typical Product Branding (Laxmi Enterprise – Vadodara)
Laxmi BioCarbon™ (Sodium Acetate Solution) – for denitrification and biological nutrient removal
Laxmi Acetate 40™ – 40% aqueous sodium acetate, ready-to-dose
Laxmi BioFeed™ – blend of acetate and propionate for enhanced microbial stability
Industrial Wastewater Treatment Chemicals
Eco-Friendly & Efficient Solutions for Industrial Effluent Management
Industrial wastewater often contains suspended solids, organic matter, heavy metals, oil, and toxic chemicals that must be treated before discharge or recycling.
Using the right chemical treatment agents ensures compliance with norms, protects equipment, and supports Zero Liquid Discharge initiatives.
. Overview
Industrial wastewater treatment chemicals are specialized formulations that assist in:
pH correction & neutralization
Coagulation & flocculation
Sludge reduction & dewatering
Disinfection & odor control
Heavy metal precipitation
Oil–water separation
Biological treatment enhancement
Laxmi Enterprise offers eco-friendly, biodegradable, and performance-driven chemicals suitable for a wide range of industrial applications.
6. Benefits of Using Advanced Treatment Chemicals
Stable and consistent effluent quality
Improved COD/BOD reduction
Reduced sludge and operational cost
Safer and eco-compliant alternatives to conventional acids/bases
Easy integration with automation systems (ETP/STP dosing)
Enhances compliance with GPCB discharge norms
About Laxmi Enterprise – Vadodara
Laxmi Enterprise is a leading supplier of eco-friendly and performance-based wastewater treatment chemicals for industrial effluent management.
With a focus on biodegradability, safety, and sustainability, our solutions support industries in achieving zero discharge and green compliance.
Product Range Includes:
Neutralization agents (acidic/alkaline)
Bio-enzymatic additives
Coagulants & flocculants
Odor & foam control chemicals
Heavy metal precipitants
Biological enhancers
• sodium acetate
• sodium acetate anhydrous
• sodium acetate trihydrate
• sodium acetate buffer
• sodium acetate CAS 127-09-3
• sodium acetate E262
• sodium ethanoate
• sodium salt of acetic acid
• sodium acetic acid
• sodium CH3COO
• natrii acetas
• hot ice (trihydrate)
• sodium acetate hydrate
