Treatment And Disposal

There are 5 different methods in which Pentas Flora manages scheduled waste, which are to reuse, recycle, recover, treat and dispose. Specialized facilities are required to handle specific types of waste, here are some examples:

Recovery & Recycling Facility
This type of facility processes and extracts certain useful materials from solvent, oil, acids or metals which may be reused.

Treatment Facility
Treatment facility handles wastes that require treatment via physical, chemical, thermal or biological methods.

Land Disposal Facility
Land disposal facility uses a carefully engineered secure landfill to dispose waste materials.

Fully Integrated Facility
Finally, fully integrated facilities takes care of waste materials using physical/chemical treatment, recovery, stabilization, incineration and land disposal (secure landfill).

Oil Recovery

Mineral oil & oil emulsion are refined using oil water separation methods such as gravity separation, coalescence separation, emulsion splitting, ultra filtration, air flotation. The result of the separation produces oil which are then reused as fuel supplements.

After the oil-water separation process, some waste oil will still be present. The waste oil will then be refined using distillation or acid/clay to produce oil which can be reused for general purposes such as timber preservative and low grade grease or lubricant.

Solvent Recovery

Organic solvents such as acetone and methanol can be recovered using distillation process. This process is usually used in alcohol solvent recovery in flexographic printing and thinner solvent recovery at motor and panel repair workshops.

Another use of solvent recovery is to cater for paint solvents to produce low grade paint, mainly white spirit.

Metal Recovery

Electroplating wastes goes through metal precipitation and ion exchange to recover metal elements like chromium, copper, aluminium, zinc, cadmium and nickel.

Photo finishing wastes, spent catalysts & electronic wastes goes through a process called electronic metal recovery to extract silver, nickel, chromium, platinum, palladium, copper and other precious metals.

Finally, a process called re-melting is used to recover solder from solder dross.

• Physical and Chemical Treatment (PCT)
• Solidification
• Incineration
• Wet air oxidation
• Reverse osmosis
• Land treatment

• A requirement of regulation 6 of the Scheduled Waste Regulations
• Not a simple technique
• Each factory is different
• More an attitude of mind
• Commitment of management essential

• Alternative to SWM in Malaysia apart from treatment, recovery and disposal at prescribed premises or on-site treatment
• Under Special Management of SW, Regulation 7, of Environmental
• Quality (Scheduled Wastes) Regulation 2005
• Application for Special Management must be in accordance with the stipulated guidelines
• Processing fee RM300
• DG of DOE may grant written approval either with or without conditions