PVC Presentation.

(1)

POLYVINYL CHL

ORIDE

(PVC)

GROUP MEMBERS:

(2)

(3)

• Also known as “Vinyl” with chemical formula of C2H3Cl

• _{Odourless and a solid plastics}

• _{White in colour (commonly)}

(4)

(5)

(6)

WHAT IS THE E

(7)

EMIS-SIONS

Hydrochloric Acid:

- _{Most corrosive of}

non-ox-idising acid.

- _{Produce poisonous gas}

including chlorine in a fire.

Ethylene Dichloride:

- _{Highly flammable.}

- _{Toxic and may cause cancer}

(known carcinogen).

Dioxin:

- _{Highly toxic and can cause}

re-productive developmental prob-lems.

- _{Damage the immune system,}

interfere with hormones and also can cause cancer.

Chloroethene:

- _{Highly flammable.}

- _{When heated, it break}

down to give toxic fumes.

Ethylene:

- _{Very reactive and}

flammable.

- _{Involve in reactions that}

(8)

(9)

THE REASONS FOR THE CHOSEN DEVICES

1) WET SCRUBBER:

• Ability to collect gases as well as particulates

• _{Capital cost low (if wastewater treatment system not required) and high maintenance c}

ost

• _{Ability to achieve high collection efficiencies on fine particulates (90% for particles 5-50}

micrometer)

• _{The price of wet scrubber (RM 4,075,000.00) which is more cheaper than dry scrubber}

(RM16,605,625.00)

• _{With routine maintenance and care, a wet scrubber can be used repeatedly over a num}

(10)

THE REASONS FOR THE CHOSEN DEVICES

2) FABRIC FILTERS BAGHOUSE:

• The fabric filter is efficient at removing fine particles

• Can exceed efficiencies of 99% for particles<0.5 micron in most applications, so no nee

d to worry about the emission

• The price is RM 142,625.00

• Stay running longer, they don’t need to be replaced as often

(11)

3) FOR ADSORBENT: ACTIVATED CARBON

• _{The efficiencies of activated carbon are 99%}

• Can be used to purify: air; drinking water; wastewater; food and beverages; an

d pharmaceuticals.

• Has among the highest amount of surface area per unit volume of any adsorbe

nt, so it is suitable for gaseous pollutant control.

• Activated carbon has no shelf life-It will keep its pore structure and its adsorpt

(12)

SCRUBBER WITH BA

G FILTER AND INJEC

(13)

WORKING PRINCIP

LE

• Contaminated gas and scrubbing liquid

will enter the scrubber and in contact wi th one another.

• _{Scrubbing liquid will capture the unwan}

ted particles.

• _{The treated air will enter the fabric filter baghouse and drawn through the filter medium.}

• _{Dioxin, furan and unwanted particles will accumulate on the medium and form a layer it will}

fall into a collection compartment.

• _{Activated carbon can be injected before entering the fabric filter baghouse or settled as a}

(14)

ACTIVATED CARBON INJECTION: The activated carbon is injected before entering baghouse. A c

arbon layer will be formed and trapped on the filter medium.

ACTIVATED CARBON BED: The contaminated gas will be treated by passing them through a mov

ing activated carbon bed.

• _{Activated carbon: As a sorbent}

(15)

THE SUMMARY OF THE EQUIPMENT

Device Life span Maintenance cost

Ef-ciency

Wet

scrubber

With routine maintenance and care, a wet scrubber can be used repeatedly over a

number of years before it must be re-placed.

High maintenance cost

90%

Fabric fil-ter

baghouse

Stay running longer, they don’t need to be replaced as often

Low maintenance costs

(16)