Eia Slides

7/30/2019 Eia Slides

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MITIGATING MEASURES

(1) Runoff and Flood Risk

An internal detention trench along the center of the site will be built;

dimension 520 meter length, 4.5 meter width and about 3.68 meter

depth.

(2) Air Pollution

Air pollutants emitted by the aluminium recovery and recycling plant are

total suspended particulate matter, sulphur dioxide, nitrogen dioxide,

hydrogen fluoride, hydrogen chloride and metals chromium, copper and

manganese. Ambient air concentrations of these pollutants were

simulated using the ISCST3 Model based on input data provided by the

project proponent and actual metereological data near the project site.


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MITIGATION MEASURES (cont.)

(3) Control of fugitive dust

Control of scrap source to eliminate heavy metals before smelting usingfloating separation process, dust collectors will be connected with screwfeed conveyor to packing silo located inside residue storage building to

minimize wind effects.

The sitting of the chimneys was determined base on consideration onheight and relative locality within 1000 meters of other present and futurestructures.

The tallest structures within 50 meters are the smelting buildings locatedwithin the site of proposed aluminium scrap recycling plant.

Online gas detector sensors for TSP will be installed in each chimney.


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Perform Performance Monitoring Program according to Technical

Guidance on Performance Monitoring of Air Pollution Control Systems

DOE-APCS-5.

Proponent shall be committed to continuous improvement on reductionof overall cumulative pollution loading.

Technologies available continuously evolved and need to be acquired,

understood and integrated into the existing unit operations.

Manpower skills will be trained and upgraded.


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(4) Water Pollution

The primary sources of water pollution are from scrap yard, ingot cooling

system, dross cooling machine, maintenance area, floating system and

drainage.

The scrap yard, driveway will be paved and perimeter drins will channel

surface water to grease traps.

The ingot cooling water will be equipped with oil skimmer.

All liquid waste shall be disposed by licensed scheduled waste

management company.


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Dross cooler maintenance will be done.

Floating system will be equipped with wastewater treatment plant to

separate the debris from the water to allow water.

A sewage treatment plant for 150 P.E. will be built to comply with

Standard A of the Environmental Quality (Sewage) Regulations 2009.


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(5) Landscaping

The proposed layout allocated 10% of the land for green belt around theproposed site inside the boundary fence. A setback of at least 1 meter allround will be provided. The green belt will be planted appropriate withappropriate rain trees, flowers and turfing.

(6) Utilities and Services

Rain harvesting should be done for cooling. If the gutters must beinstalled, there shall be provision for cleaning to prevent mosquitobreeding.

(7) Decommissioning and Abandnment The intended life of the plant is 60 years. There is no plan to

decommission the plant at this stage and if the plant becomes obsolete itwill be replaced.


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(8) Odour

The aim is to prevent contact between water and aluminium dross which generateammonia.

Industrial vacuum cleaner will be used to remove fugitive dust settled on the flooron regular basis.

Roof shall be designed and installed with suitable sheet material.

There shall be regular preventive maintenance to free the gutters of bird dropping,bird nest, leaves, dusts, corroded roof sheets materials.

The factory shall be designed with full height all round walls.

All the ventilation and lighting features shall be designed to prevent side rain frombeing blown into the building.

The concrete floor shall be designed to allow for sufficient loading capacity to

withstand the weight of the machineries and storage materials.


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(9) Noise

The perimeter noise impact assessment was conducted.

The worst case scenario will be the noise from the shredder.

The blowers will cause occupational noise and silencers proposed will be

adequate.

The shredder is not expected to pose significant perimeter noise withmitigation measure.

The shredder shall be equipped with properly designed sound proofing to

control noise emission within occupational and perimeter limits.


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(10) Solid Waste

The proposed development will generate substantial non-hazardousrecovered resources and will be sold to scrap collectors.

Proponent shall also generate aluminium residue SW104 and will berecycled into Aluminium ingot SOW.

Proponent shall generate secondary aluminium residue (Almix) SW104which shall be recycled in advanced recovery processing at proponentslicensed scheduled waste recovery of aluminium residue plant at PLO 456,

Jalan Keluli.

Proponent shall generate aluminium residue dust SW501, greasy rubbishSW312, wipes SW410 and empty drums SW409 for disposal by licensedscheduled waste container recycling company, i.e. Kualiti Alam


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RESIDUAL IMPACT

Key Construction phase

impacts

Construction disturbance

Air pollution dust Soil erosion and water runoff

Workers camp solid wastes

and sewage

Noise from construction

machineries

The key operation phase

impacts

Air pollution from gaseous

and dust emission includingfugitive dust emissions

Spillage of hydraulic,

lubricating and fuel oil diesel

Risk of natural gas use

Odour from contact of waterwith aluminium residue

Operator safety


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RESIDUAL IMPACT (cont.)

The proposed mitigating measures had been

presented and will be expected to mitigate

most of the impacts as best practical.

Unrecoverable scheduled waste will be sent to

licensed schedules waste disposal company

for final disposal.

No outstanding issues remain.

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