On this page
- Introduction
- 1. Collection and Transportation
- 2. Safe Storage of Waste Batteries
- 3. Battery Disassembling and Acid Draining
- New Requirement for Mechanical or Automated Battery Breaking
- 4. Lead Smelting
- 5. Lead Refining and Alloying
- Infrastructural Needs for Lead Acid Battery Recycling
- Stack and Air Pollution Control Requirements
- Effluent Treatment and Acid Neutralization
- Management of Sludge, Residue and Slag
- Plastic Waste Generated During the Process of Disassembly of Lead-Acid Batteries
- Worker Safety Requirements
- Lead Emission and Discharge Standards
- How to Minimise Fugitive Lead Emissions
- Recording and EPR compliance
- Step-by-Step Process to Start Lead-Acid Battery Recycling
- What is Most Important for the Existing Recyclers?
- Environmental Compliance in Case of Accidents
- Penalties and Action for Non-Compliance
- Conclusion
Introduction
Recycling of lead acid batteries is an important process because it helps in saving natural resources and is environmentally friendly. Lead acid batteries are used widely for their reliability and efficiency. However, any wrong management of these batteries may prove to be harmful to the environment because of the toxicity of lead and sulfuric acid. Here we see how recycling of these batteries takes place.
1. Collection and Transportation
The first step in this process is collecting all such batteries that have completed their life cycle. These batteries are collected from various places.
When it comes to transporting them, care has to be taken so that nothing leaks or spills along the way, since that could end up contaminating the surrounding environment.
Once these batteries reach the recycling facility, they need to be safely stored to cope with leakage and exposure.
2. Safe Storage of Waste Batteries
A separate covered room needs to be made at the recycling facility for storing the used/waste lead-acid batteries.
This room needs to have:
- Impervious floor resistant to acids
- Acid collection facility
- Acid collection tank
- Neutralisation tank
- Fumes control system
- Sufficient Air Pollution Control System (APCS)
As per guidelines issued by CPCB, an acid collection facility needs to have a fumes control system in the form of fume arrester having adequate APCS.
3. Battery Disassembling and Acid Draining
Disassembling the lead-acid battery is the first step in the process of recycling.
Battery disassembling may be done either with the help of a battery cutting machine or through manual battery disassembling. Sulphuric acid electrolyte is removed and neutralized with ETP treatment or as required.
Plastic components once separated from lead-bearing components go for their respective plastic recycling procedures.
According to the guidelines, two types of battery disassembling systems after acid draining are:
1. Manual disassembling – disassembling of battery from the top side, removing plates and draining out of the remaining acid.
2. Mechanical disassembling – disassembling of battery with the casing.
New Requirement for Mechanical or Automated Battery Breaking
One of the key requirements set forth in the 2026 July guidelines involves mechanical/automated waste battery breaking systems.
According to the guidelines:
- For facilities having a capacity above 5,000 MTA, installation of mechanical/automated waste battery breaking systems is required to be made in a period of one year after receiving notification.
- For smaller facilities having a capacity below 5,000 MTA, installation of such systems is required in a period of three years from the issuance of guidelines.
The process of automatic cutting must take place on a concrete floor inside a shed-type structure.
Furnace charging through mechanisation is also recommended due to its effectiveness in reducing worker exposure to lead fumes/dust and minimising manual material handling.
4. Lead Smelting
After taking apart and separating, lead-bearing materials are transferred to the lead-smelting section.
The CPCB-described process involves feeding the lead-bearing components into a furnace where they are smelted using suitable additives such as charcoal, soda ash, iron chips and flux.
This produces re-melted lead, which is collected for further refining.
Depending on the facility, the guidelines identify furnace options such as:
- Rotary furnace
- Mandir Bhatti
- Refining alloy kettle
Each relevant furnace system should have appropriate suction and air-pollution-control arrangements.
5. Lead Refining and Alloying
The molten lead is then transported to a refining and alloying kettle.
In this process, purification of lead is done, and lead alloys can be manufactured depending upon the needs of industries. Refined lead is made into lead ingots using an ingot casting machine.
Thus, the recycled lead can be made ready as a secondary raw material resource.
Infrastructural Needs for Lead Acid Battery Recycling
For effective compliance, the lead acid battery recycling unit needs the following infrastructural facilities for battery breaking, acid management, smelting, refining and pollution control.
Some of the important facilities that need to be provided include:
- Battery breaking machine
- Dismantling facility (manual/automatic)
- Acid proof covered storage facility
- Acid collection tank
- Neutralization tank
- Effluent Treatment Plant
- Rotary furnace/Mandir Bhatti/Refining kettle as per requirement
- Suction hoods
- Expansion chamber
- Cooling tubes/ducts
- Cyclone/multi cyclone
- Bag filter
- Alkaline scrubber
- ID fan
- Stack
- Facility for sludge storage
- Storage facility for residues and slag
- Plastic recycling arrangement
- Personal Protective Equipment (PPE) for workers
As per guidelines issued by the CPCB, the pollution control train for the furnace includes the use of an expansion chamber, cooling tubes/ducts, cyclone or multi-cyclone, bag filter, alkaline scrubber, ETP, ID fan and stack.
Stack and Air Pollution Control Requirements
One of the important factors associated with compliance while dealing with air pollution control in the process of lead-acid batteries recycling.
In accordance with the guidelines, the stack must have a minimum height of 30 meters along with a sampling port, monitoring platform, and safety access facility.
The suction hoods must capture the fumes generated during charging operation of furnace, metal tapping operation and others, and channelize them to APCS.
Effective pollution control equipment helps to reduce the amount of lead dust and fumes and thus protect the environment and people.
Effluent Treatment and Acid Neutralization
Recycling of lead-acid batteries generates acidic effluents due to battery breaking, floor washing and other activities.
There must be an ETP with physical-chemical treatment and acid neutralization for the recycling plant.
The acidic effluent from floor washing must be sent to the neutralization plant. The treated effluent discharge must meet the criteria of Consent to Operate.
Management of Sludge, Residue and Slag
The sludge, residue, and slag can also be generated during the process of recycling.
It is important that there should be proper covered facilities for the ETP sludge, and the sludge needs to be disposed of as per the Hazardous and Other Wastes and the sludge should be sent to a TSDF.
The residue and slag generated during the process of lead recycling also need to be handled in a properly covered concrete flooring facility, and the record of transportation of the hazardous waste to TSDF is maintained.
Recycling facilities should also obtain the applicable Hazardous Waste Management Authorization to ensure proper handling and disposal of hazardous waste.
Plastic Waste Generated During the Process of Disassembly of Lead-Acid Batteries
The plastic boxes and chips, which are generated during the process of disassembly of lead-acid batteries, might have lead contamination.
Therefore, proper treatment and transportation of plastic waste to the registered plastic processors/recyclers or processed within the plant.
Worker Safety Requirements
Exposure to lead is an occupational hazard in lead acid battery recycling.
The guidelines recommend that the units must offer proper protective equipment, which includes:
- Gloves
- Masks
- Boots
- Aprons
Handling should be mechanized and proper extraction systems should be employed where applicable in order to minimize worker exposure to lead dust and fumes.
The guidelines also indicate that units dealing with lead should conduct tests for lead content in the blood and urine of workers, and this is recommended on an annual basis.
Lead Emission and Discharge Standards
The July 2026 CPCB guidelines specify the following lead-related limits:
| Parameter | Limit |
|---|---|
| Lead in work area, NIOSH 8-hour average | 0.05 mg/m³ |
| Lead in stack emissions | 10.0 mg/Nm³ |
| Lead in effluent | 0.10 mg/L |
| Lead near factory boundary, 24-hour average | 1.0 μg/m³ |
The guidelines also state that recyclers must comply with other applicable standards prescribed under the Environment (Protection) Rules, 1986.
How to Minimise Fugitive Lead Emissions
Fugitive emissions may occur during storage, handling, furnace charging, smelting, and refining. The guidelines by CPCB, thus, offer a number of measures to reduce fugitive emissions.
These include:
- Adequately designed fume collection systems
- Ventilation or suction at furnace charging and tapping points
- Closed storage and handling areas
- Concrete flooring
- Mechanized handling systems
- Sprinkling/Wetting of loading areas
- Separate collection of contaminated effluents
- Vehicle tyre washing arrangements
The aim is to ensure that no lead is allowed to become airborne or enter the soil and water systems.
Recording and EPR compliance
Physical recycling is not enough for compliance. The recyclers of lead-acid batteries need to comply with the EPR norms under the Battery Waste Management scheme.
As per CPCB guidelines, the recycler should:
- Register on the online Battery Waste Management EPR portal.
- Issue EPR certificate.
- Transfer EPR certificate to producer to meet EPR target.
- Report yearly wise waste battery procurement.
- Report recycled battery.
- Report sale of recovered material.
- File quarterly return through online EPR portal.
Battery recyclers can explore the Battery EPR Registration process to understand the applicable registration requirements and compliance obligations.
Step-by-Step Process to Start Lead-Acid Battery Recycling
If companies want to construct a Lead Acid Battery recycling plant, then they should adopt a step-by-step process which includes
Business Planning → Facility and Site Planning → Technology Selection → Pollution Control Design → Necessary Approvals/Consent → Installation of Breaking Systems & Smelting Systems → ETP & APCS Installation → Safety Measures → CPCB EPR registration → Trial/Ongoing Compliance → Recycling → EPR record/return
The necessary consents and approvals will however vary according to the site, capacity, technology and the activities of the facilities.
Companies planning a new recycling facility can explore battery recycling plant setup requirements to understand the infrastructure and regulatory considerations involved in establishing a recycling unit.
Before starting construction, businesses may also need to obtain Consent to Establish (CTE) from the applicable State Pollution Control Board, depending on the project requirements.
What is Most Important for the Existing Recyclers?
For existing recyclers, the need of the hour is to focus on the battery breaking process as per the new guidelines.
Facilities above 5000MTa will get one year while the rest will get 3 years according to the guidelines under July 2026
Apart from this, it is necessary for facilities to ensure the following aspects
- Battery Storage Areas
- Acid Collection and Neutralization
- Battery-breaking Systems
- APCS of the furnace
- ETP
- Stack and Monitoring System
- Sludge and Slag storage
- PPE for Workers
- Lead Exposure Monitoring
- EPR Record/return
Existing recyclers should also ensure timely Battery EPR annual filing and maintain the required records of battery procurement, recycling and recovered material sales.
Environmental Compliance in Case of Accidents
In case of accidents that may result in environmental contamination, it is necessary for the company carrying out the battery recycling process to adopt an action plan.
The larger CPCB framework recognizes that in cases where damage occurs due to poor management practices including accidental spillages during generation, storage, processing, transportation and disposal.
Penalties and Action for Non-Compliance
Non-compliance of the guidelines will result in penalties being imposed.
As per the July 2026 circular, the non-compliance will be addressed by referring to the Guidelines for Environment Compensation as per the Battery Waste Management Rules, 2022, notified in September 2024.
This implies that recyclers need to consider factors such as environment, safety, and EPR as continuous processes and not one time activity.
Conclusion
The CPCB norms for July 2026 provide clear guidance on how to properly recycle lead-acid batteries starting from their collection and storage through acid stripping and smelting and refining. Achieving this is possible only through a careful consideration of several factors such as automation of battery breakage, acid-safe storage, ETP installation, stack height of 30 metres, lead emissions restrictions, workers’ safety, and EPR compliance.
A good lead-acid battery recycling plant not only adheres to the norms but also makes sure that the lead is recovered properly and thus becomes an active participant in the development of India’s circular economy. It’s wise to have your infrastructure and process checked for compliance before building a new plant or modernizing the existing one. Get professional assistance in achieving this from Certilize.
Frequently asked questions
Are these guidelines mandatory for existing recyclers too?
Yes. Existing units get transition time (1 year for plants above 5,000 MTA and 3 years for smaller plants) only for installing automated battery-breaking systems; everything else, like acid handling and EPR filing, applies immediately.
Certilize can help review your setup against the new norms: Battery Recycling Plant Setup.
What happens if a recycler doesn't comply?
Non-compliance attracts Environment Compensation under the Battery Waste Management Rules, 2022, and can put your EPR status at risk. Compliance isn't a one-time task; it needs continuous tracking.
Is EPR registration different from CPCB plant authorization?
Yes. Authorization checks your plant's technical and pollution-control standards; EPR registration is a separate legal requirement for reporting and certification. Most recyclers need both.
Certilize helps manage this: Battery EPR Registration.
How long does it take to get a lead-acid recycling plant compliant?
There's no fixed timeline; it depends on capacity, site, and approvals needed. Most delays come from paperwork, not construction, so getting approvals and DPR planning sorted early helps a lot.
Is blood-lead testing for workers actually required?
CPCB recommends annual blood and urine lead testing along with proper PPE. It's framed as a recommendation, but inspectors treat it as a compliance essential skipping it is a real risk during audits.
