Cenviro through its subsidiary companies namely Kualiti Alam, Cenviro Services and Cenviro Recycling & Recovery specialise in scheduled waste management from downstream, midstream to upstream activities.



Kualiti Alam owns and operates the only integrated hazardous waste management centre in Malaysia, Kualiti Alam Waste Management Centre (WMC) in Negeri Sembilan. The WMC holds the license to handle 76 categories of 77 scheduled wastes listed under Environmental Quality (Scheduled Wastes) Regulations 2005.

With more than 20 years of expertise and experience, Kualiti Alam continues to offer a comprehensive range of waste management services ranging from analysis, treatment, recycling, recovery, logistics to final disposal of scheduled waste. Based on its focus on innovation and technology development, Kualiti Alam remains to reinforce its commitment to the industry, environment and community; and have been recognised for its excellence with various certifications including ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018.

All facilities are designed and managed to meet stringent international standards. These facilities have the capacity to store, treat and dispose more than 100,000 tones of all classes of hazardous wastes annually. The end-to-end facilities comprise of Incineration Plant, Solidification Plant, Physical & Chemical Treatment Plant, Secured Landfill and Clinical Waste Treatment Centre.

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Kualiti Alam Waste Management Centre

Services & Facilities

The Incineration Plant for scheduled waste is built to cater to all organic waste that requires thermal treatment to achieve maximum destruction efficiency. Scheduled organic waste, including toxic, hazardous, clinical and pathological waste in all forms, solids, sludge and liquids are treated here. A rotary kiln as the primary combustion chamber with a temperature of up to 1000°C and secondary combustion chamber operating at above 1000°C to ensure the highest possible destruction efficiency, followed by heat recovery system and finally an extensive multi-stage flue-gas treatment system.

Designed with multiple feed streams, dual combustion chambers, rapid cooling, dry and wet scrubbing systems, the plant is designed to achieve 99.99% destruction and flue-gas removal efficiency. Emissions from this plant meet all Malaysian Environmental standards. The incineration process is being monitored by Continuous Emissions Systems (GEMS) to ensure the compliance with Department of Environment, Malaysia (DOE) license condition. Fully computerised and equipped with continuous monitoring systems, the Incineration Plant represents the latest standard in rotary kiln incineration technology. 
Stabilisation and solidification aim to immobilise the toxic constituents of hazardous wastes to prevent them from leaching from the wastes once disposed. The Solidification technologies are often used to treat the residues from other treatment processes such as fly ash from incineration or sludges from heavy metal precipitation. Cement, lime and sand are also used in the solidification process. Solidification technologies are effective in treating a variety of difficult to manage inorganic wastes.

At Solidification Plant, inorganic wastes that are typically metal hydroxide sludge containing heavy metals such as lead, arsenic, nickel, zinc and chromium which do not fulfil the Direct Landfill Waste Acceptance Criteria for direct disposal into Secured Landfill are treated. This Plant can be used for wastes containing mixtures of contaminants and can economically treat large waste volumes.
Physical & Chemical Treatment Plant (PCT) is capable of handling all types of inorganic liquid waste such as acid, alkaline, oxidizer, chromate, cyanide and others. The PCT is also able to handle wastes with high total dissolved solid content through the use of a proprietary treatment process. These wastes are treated through various chemical processes including neutralisation, oxidation and reduction.

The PCT is operated with an intelligent monitoring control system to minimise the potential hazards. This facility allows the treatment of contaminated acids and alkalines, various wastewaters and spent plating solutions. The slurry and filtered press sludges are tested periodically to ensure all wastes are treated in a safe and cost effective manner.


Kualiti Alam offers the most innovative technology in medical waste disposal, AMS-serial 250-Ecosteryl. It is a zero emission technology, no harmful effects, no water, no steam, no odour, no burning or smoke, and is capable to process up to 300 kilogramme per hour. The residue from the process is inert and landfill ready.

The Microwave Ecosteryl is manufactured by AMB-Ecosteryl, a specialist in the commercial treatment of medical waste without combustion. Kualiti Alam is also the distributor for this revolutionary technology to the region, including Thailand, Indonesia, Singapore, Turkey and Brunei.

Continuous - Process Flow

Continuous - Process Flow
Kualiti Alam Clinical Waste Treatment Centre
Kualiti Alam Clinical Waste Treatment Centre
In 2015, the existing secured landfill at the WMC was close to full capacity. We had a major problem of finding adequate space for incoming waste.
We then conceptualized a strategic vision to create more air space at our existing landfill. The Vertical Secured Landfill Project was born and construction commenced in March 2015.
Over the next four years, a 24m high geogrid wall will be built along the 1.7km parameter of our existing secured landfill. This first phase (Phase 1) will provide additional capacity of 1.5 million MT and increase the lifespan initial by 15 years without using new land.

Vertical Secured Landfill

What is Geogrid Wall?

  • A green wall works as soil reinforcement
  • Flexible, fast and easy to construct
  • Structure designed for durability
  • Better resistance to dynamic characteristics
  • Using existing space no new land
  • 30 years of landfill on the same land

Effluent Treatment Plant  (ETP)

Kualiti Alam Waste Management Centre (KAWMC) has two facilities to treat wastewater generated in daily operation of treatment and disposal of Scheduled Waste. Effluent Treatment Plant (ETP) is built to treat contaminated surface runoff from the operation area and effluent from the scheduled waste treatment process. The process is a combination of physical-chemical treatment, biological treatment and has the capacity of 300m3/day. The ETP plant is also equipped with Ultrafiltration/Reverse Osmosis polishing system to ensure treated effluent consistently meet Standard A limit as stipulated in Industrial effluent Regulation 2009.

Leachate Treatment Plant (LTP)

Leachate from Vertical Secured Landfill is treated by other dedicated plant called Leachate Treatment Plant (LTP). This plant has a treatment capacity of 400m3/day and runs more complex process than ETP plant. LTP has two stages of biological treatment to remove ammonia and organic contents. Advanced Oxidation and Carbon Adsorption process to further reduce organic contents and finally Ultrafiltration/Reverse Osmosis polishing system to achieve Standard A. Treated effluent and treated leachate from both plants will be reuse as quench water in Incineration Plants.