3.6.1 GENERAL
A waste is material which is discarded or intended to be discarded.
Doc. Number Prepared By HSED Approved By
Network Loc. Directory Name HSE MANUAL Page No Page 92 of 448
The management of waste calls for a great degree of supervision to minimise it from ADGAS operations. Principally a common methodology for a waste management programme covers, elimination, source reduction, recycling / revovery, reuse, treatment and disposal. This is generally known as the waste hierarchy and is shown in Figure 3-1.
3.6.1.1 THE STEPS IN THE WASTE HIERARCHY
The Waste Hierarchy Eliminate
Reduce
Re-use
Recycle
Energy Recovery
Disposal
Best Environmental Option
Worst Environmental Option
Figure 3-1: The Steps in the Waste Hierarchy
Eliminate
Not creating waste for disposal by adhering to the following hierarchy; consumption avoidance, product and packaging re-use, and organic and non-organic material recycling and composting (in that order of priority).
Reduce
Applying the principle of 'true cost', shows that it is far more time and cost effective to tackle the causes of waste rather than treat the waste once it has been produced.
Reducing waste can be achieved through a combination of monitoring and analysing systems and processes. This is where staff can make an invaluable contribution in identifying improvements.
Re-use
Imagination and innovation is required, remember not to be restricted to the continuous re-use of a material for its original purpose. For example, much ingenuity has been seen
Doc. Number Prepared By HSED Approved By
Network Loc. Directory Name HSE MANUAL Page No Page 93 of 448
in the re-use of materials for packaging, using shredded paper and cardboard as a packaging material is one such example, thus extending the useful life of the
paper/cardboard and reducing the cost of buying in specific packaging materials. Repair or upgradability may also be a consideration when deciding whether an item has re-use potential.
Recycle
Recycling involves the recovery of materials for use in another product. The process of recycling includes the segregation and collection of waste, as well as the physical recycling itself. The term also encompasses composting and waste exchange. Items or materials must be considered discarded and available for disposal in order to be
recycled, therefore the item or material is legally classified as waste. Recycling can be conducted in-house or through a direct relationship with a re-processor.
Recover Energy
Energy can also be recovered from waste by using it as a fuel; the viability of this option is often dependent on the materials calorific value. The energy is usually recovered in the form of heat but can include electricity and biogas generation. This also reduces its volume and weight for disposal.
Disposal
Disposal generally either involves containment, generally through landfill, or destruction, normally through incineration. Incineration reduces the waste to approximately a third of its original mass. Disposal in these ways is considered the least sustainable option, maximising resource recovery in all the ways outlined reduces the demand for raw materials, thus lessening the impacts on the environment whilst providing an economic incentive to re-use and recycle "waste".
Further Information
Hazardous Substance Manual.
Waste Disposal Manual.
OD SI W-08, Disposal of dangerous materials.
ADNOC-COPV2-05: Waste Management
3.6.2 WASTE IDENTIFICATION AND CLASSIFICATION
Wastes are classified as either Hazardous or Non-Hazardous in the form of solid, semi-solid, liquid and gaseous.
Wastes produced in ADGAS operation are identified and listed in the Waste Disposal Manual with ID No. against each waste. The data sheet for the respective waste will describe identification, waste name, classification, source, main chemical constituents, chemical formula, description , estimated discharge rate, hazards, procedure for disposal, documentation requirements and any other additional information.
Doc. Number Prepared By HSED Approved By
Network Loc. Directory Name HSE MANUAL Page No Page 94 of 448
3.6.3 WASTE SEGREGATION AND COLLECTION 3.6.3.1 NON-HAZARDOUS WASTE DISPOSAL PRACTICE
In ADGAS labelled and colour coded drums are placed in strategic locations to collect different types of routinely produced non-hazardous waste.
Office cleaners assigned to a department pick up the waste from each office and deposit it in the labelled drums.
The labelled drums are emptied out by the Das Island Services Department when they are full.
The responsibility lies with the generator of the waste to ensure that all such wastes are deposited in the correct drum as per the following colour codes:-
Waste Type Drum Colour
Scrap metal (any metal or metal object) Red Glass (Bottles, broken window, glass electrical fittings and non contaminated laboratory glass)
Green Waste paper (clean grease free paper, cardboard, photocopy
paper, old books and files)
White Scrap plastic (Mineral water/ drink bottles, plastic sheet, plastic
packaging material/ file folder etc.
Blue Other Waste (Dirty paper, contaminated food wrapper, wax
paper oily rags, wood cuttings, paper towels etc.)
Cream
The waste is collected, volume reduced and sent to vendor for recycling and disposal of other waste by incineration.
3.6.3.2 HAZARDOUS WASTE DISPOSAL PRACTICE
Recyclable hazardous waste are primarily the lubricating oil, printer cartridge, liquid chemical samples etc. The waste generator shall collect liquid hazardous waste in good steel/plastic drums with bungs only .DO NOT USE DEFORMED OR LEAKING DRUMS.
Ensure no leakage occurs. Printer cartridges shall be collected in double polythene bags.
Label the description of the waste on the receptacles as described in ADGAS Waste Disposal Manual, section 5.
Disposal of the waste shall be initiated through waste disposal form and sent to HSED for approval and documentation. After receiving the feedback from HSED, the generator will arrange for its disposal as per the procedure outlined in the ADGAS Waste Disposal Manual.
Non recyclable hazardous wastes are those other than the above and listed in section 5 of the ADGAS Waste Disposal Manual. This will generally require the waste to be properly segregated, labelled, packed and transported to ADNOC – Ruwais site.
Doc. Number Prepared By HSED Approved By
Network Loc. Directory Name HSE MANUAL Page No Page 95 of 448
3.6.4 RESPONSIBILITIES
For a complete description of responsibilities, refer to section, “Disposal To Places Other Than Das Island of ADGAS WASTE DISPOSAL MANUAL”.
3.6.5 RECORDS
A Waste Disposal Form must be produced for all types of Waste, by the generator and approved by HSED. Record of Waste disposal will be maintained by the waste generator and HSED.
The minimum required procedure has been outlined in the ADGAS Waste Disposal Manual.
Further Information
ADGAS Waste Disposal Manual.