# data[].attributes.body
NOR FARAH NADIRAH BINTI SHAHROM
1) Dilution of concentrated wastes,perhaps by bleeding into dilute metal containing wastes.
2) Control of neutralization rate, reagent feed rate to avoid excessive temperature rise in the reaction.
3) Addition of lime slurry ( and dilution water if necessary) to the reaction tank prior to adding acid waste. This coat the tank and protects it from strong acid,and allow dissipation of the heat of reaction throughout the mass of slurry and dilution water in the tank.
4) cooling of the reaction tank externally or by aeration.
5) adequate ventilation of emissions.
6) use of a surface impoundment with large surface area for neutralization.

# data[].attributes.body
ZnSO4(aq) + 2NaOH(aq) -> ZnOH2(s) + Na2SO4(aq)

# data[].attributes.body
1. Dilution of concentrated waste, perhaps by bleeding into dilute metal containing waste.
2. Control of neutralization rate, example and reagent feed rate, to avoid excessive temperature rise in the reaction tank.
3. Addition of lime slurry.
4. Cooling of the reaction tank externally or by aeration.
5. Adequate ventilation of emissions.
6. Use of a surface impoundment with large surface atea for neutralization.

# data[].attributes.body
NUR AZRIYANI
1. Insulation condition; The heat generated only needs to compensate for the heat used by the furnace body due to heat dissiption. The heat dissipation string is set and the change process is slow. The PID adjustment method is used to control, the effect is ideal, and the fumace can be heated easily. The temperature is kept in the range of plus or minus 1

2.Heating conditions: When the glass only enters the body of glass tempering furnace, the original heatequilibrium state suddenly breaks, causing a sharp drop in furnace temperature, which is between 20-100. When the glass temperature increases, the fumace temperature graduallytends to the set value, untill the glass temperature is consistent with the fumace temperature the heating process is also declared over.

# data[].attributes.body
1. Dilution of concentrated wastes, perhaps by bleeding into dilute metal containing wastes.
2. Control of neutralization rate.
3. Addition of lime slurry to the reaction and protects it from strong acid.
4. Cooling of the reaction tank externally or by aeration.
5. Adequate ventilation of emissions.
6.Use of a surface impoundment with large surface area for neutralization.

# data[].attributes.body
-Dilution of concentrated wastes, perhaps by bleeding into dilute metal containing wastes
-control of neutralization rates example and reagent feed rate to avoid excessive temperature rise its the reaction tank
-Addition of lime slurry (dilution water if necessary to the reaction tank prior to adding acid waste this coat the tank and protects it from strong acid
-cooling of the reaction tank externally or by aeration
-adequate ventilation of emissions
-use of a surface impoundment with large surface area for neutralization

# data[].attributes.body
1. Dilution of concentrated waste, perhaps by bleeding into dilute metal containing waste.
2. control of neutralization rate.
3. addition of lime slurry to the reaction prior to adding acid waste. This coat the tank and protects it from strong acid and allow dissipation of the heat of reaction throughout the mass of slurry and dilution water in tank.
4.cooling of the reaction tank externally or by aeration
5. adequate ventilation of emissions
6. use of a surface impoundment with large surface for neutralization

# data[].attributes.body
1.dilution of concentrated wastes ,perhaps by bleeding into dilute metal containing wastes.
2.control of neutralization rate, to avoid excessive temperature rise in the reaction tank.
3.addition of lime slurry
4.cool of the reaction tank
5. adequate ventilation of emissions
6.use of a surface impoundment with large surface area for neutralization.

# data[].attributes.body
1. Dilution of concentrated waste, perhaps by bleeding into dilute metal containing waste.
2. control of neutralization rate.
3. addition of lime slurry (and dilution water if neccesary) to the reaction prior to adding acid waste. This coat the tank and protects it from strong acid and allow dissipation of the heat of reaction throughout the mass of slurry and dilution water in tank.
4.cooling of the reaction tank externally or by aeration
5. adequate ventilation of emissions
6. use of a surface impoundment with large surface for neutralization

# data[].attributes.body
Lime
- low chemical lost
Caustic
- higher maintaince cost
- easy to handle

# data[].attributes.body
1. Potential generate toxic hydrogen sulfide gas .
2. Process can be relatively complex

# data[].attributes.body
Caustic
-Does not cause scaling problems
-more reactive

lime
-low cost
-more settleable

# data[].attributes.body
1.more toxic compare to hydroxide
2.not used as widely

# data[].attributes.body
1) LIME - LOW CHEMICAL LOST
2) NAOH - EASY TO HANDLE, HIGH CHEMICAL LOST

# data[].attributes.body
LIME : More settleable and filterable precipitate

CAUSTIC : More reactive and Easy to handle

# data[].attributes.body
Lime
- low chemical cost
- more settleable & filterable precipitate

Caustic Hydroxide Precipitation
- easier to handle
- more reactive

# data[].attributes.body
ZnSO⁴ (aq) + 2NaOH(aq) ➡️ ZnOH²(s) + Na2SO⁴(aq)

# data[].attributes.body
1 . Carbonate preciptation
2 . Hydroxide precipitation
3 . Sulfide precipitation

# data[].attributes.body
Lime - low chemical cost
Caustic - more reactive and easy to handle

# data[].attributes.body
Advantages of lime
- Low chemical cost
Advantage of caustic
- Easy to handle

# data[].attributes.body
- Potential generate toxic hydrogen sulfide gas
-process can be relatively comple

# data[].attributes.body
1) POTENTIAL GENERATE TOXIC HYDROGEN SULF GAS
2) POTENTIAL FOR RELEASE OF EXCESSIVE SULFIDE IN THE EFFLUENT

# data[].attributes.body
1.Hydroxide Precipitation
2.Sulfide Precipitation
3.Carbonate Precipitation

# data[].attributes.body
- potential generate toxic hydrogen sulfide gas
- potential for release of excessive sulfide in the effluent which may the require post treatment

# data[].attributes.body
lime: low chemical cost
caustic: easy to handle

# data[].attributes.body
-Potential generate toxic hydrogen sulfide gas
-need post treatment

# data[].attributes.body
Lime:
low chemical cost and more settleable and fiterable precipitate

Caustic
-easy to handle and more reactive

# data[].attributes.body
Lime CaOH : Low chemical cost
Caustic NaOH : More reactive

# data[].attributes.body
1) potential generate toxic gas
2) process can be complex

# data[].attributes.body
1. It potential to realease excessive sulfide
2. It potential to generate toxic hydrogen sulfide gases

# data[].attributes.body
1.Potential generate toxic hydeogen sulfide gas
2.have a smaller sizes and poor settling characteristics

# data[].attributes.body
NOR FARAH NADIRAH BINTI SHAHROM
1) Potential generate toxic hydrogen sulfide gas
2) Potential to release of excessive sulfide in the effluent which may require post treatment.

# data[].attributes.body
1. Generate toxic (H2S)
2. More toxic compare to Hydroxide precipitation.
3. If pH low than 8 means it's become acidic.

# data[].attributes.body
-sulfide precipitation
-carbonate precipitation
-hydroxide precipitation

# data[].attributes.body
release of excessive sulfate in the effluent,which may then require post treatment.
potential generate toxic hydrogen sulfide gas.

# data[].attributes.body
1. smaller particle sizes and poor settling characteristics.
2. not used as widely

# data[].attributes.body
LIME-CaOH
1) LOW CHEMICAL COST
2) MORE SETTLEABLE AND FILTERABLE PRECIPITATE

CAUSTIC-NaOH
1) MORE REACTIVE
2) EASY TO HANDLE

# data[].attributes.body
- potential for residual sulfide in treatment effluent.
- potential for toxic hydrogen sulfide gas emissions.

# data[].attributes.body
1. sulfide precipitation
2. hydroxide precipitation
3. carbonate precipitation

# data[].attributes.body
1. Hydroxide precipitation
2.Sulfide precipitation
3.Carbonate precipitation

# data[].attributes.body
Lime:  low chemical cost
Caustic: higher maintenance cost

# data[].attributes.body
1.carbonate pricipitition
2.hydroxide pricipitition
3.sulfide pricipitition

# data[].attributes.body
advantages of caustic
- more reactive
- easy to handle
advantages of lime
- low chemical cost
- more settleable and fiterable precipitate

# data[].attributes.body
-Potential generate toxic gas
-process can be complex

# data[].attributes.body
1. Hydroxide precipitation
2. Carbonate precipitation
3. Sulfide precipitation

# data[].attributes.body
ADVANTAGE:
lime: low chemical cost & more settleable and filterable precipitate
caustic: more reactive and easy to handle

# data[].attributes.body
-Hydroxide precipitation
-Sulfide precipitation
-Carbonate precipitation

# data[].attributes.body
Zn SO4 (aq) + 2NaOH (aq) → Zn(OH)2 (s) + Na2SO4 (aq)

# data[].attributes.body
- Potential generate toxic hydrogen sulfide gas
-process can be relatively complex

# data[].attributes.body
- have smaller particle sizes & poor settling characteristics
- produces toxic hydrogen sulfide gas

# data[].attributes.body
1. Dilution of concentrated wastes, perhaps by bleeding into dilute metal containing wastes.
2. Control of neutralization rate, example and reagent feed rate, to avoid excessive temperature rise in the reaction tank.
3. Addition of lime slurry
4. Cooling of the reaction tank
5. Adequate ventilation of emissions
6. Use of a surface impoundment with large surface area for neutralization

# data[].attributes.body
It rapidly dissociates into available hydroxyl ions, resulting in minimal holdup time and reducing feed system and tankage requirements.

# data[].attributes.body
LIME
-Low chemical cost
- More settleable and filterable

Caustic
-Higher feed equipment cost
- Higher maintaince cost

# data[].attributes.body
CaOh- low chemical cost.
NaOH- More reactive.

# data[].attributes.body
1) Hydroxide preciptation
2) sulfide precipitation
3) Canbonate precipitation

# data[].attributes.body
- carbonate precipitation
- hydroxide precipitation
- sulfide precipitation

# data[].attributes.body
1) HYDRXIDE PRECEPITATION
2) SULFIDE PRECEPITATION
3)CARBONATE   PRECEPITATION

# data[].attributes.body
1. Potential generate toxic hydrogen sulfide gas
2.Potential for release of excessive sulfide in the effluent, which may then require post treatment

# data[].attributes.body
NOR FARAH NADIRAH BINTI SHAHROM
ADVANTAGES OF LIME
1) Low chemical lost
ADVANTAGES OF CAUSTIC
2)More reactive

# data[].attributes.body
-sulfide precipitation
-carbonate precipitation
-sodium precipitation

# data[].attributes.body
Advantages of lime -CaOH
-Low chemical cost
-more settleable and filterable precipitate

advantage of caustic -NaOH
-more reactive
-easy to handle

# data[].attributes.body
-Sulfide precipitation
-Hydroxide precipitation
-Carbonate precipitation

# data[].attributes.body
2 disadvantages of sulfide precipitation :
1. Potential generate toxic hydrogen sulfide gas.
2. This process might result in odor problem

# data[].attributes.body
-Hydroxide precipitation
-Sulfide precipitation
-Carbonate precipitation

# data[].attributes.body
1)HYDROXIDE PRECIPITATION
2) SULFIDE PRECIPITATION
3) CARBONATE PRECIPITATION

# data[].attributes.body
1.hydroxide precipitation
2.carbonate precipitation
3.sulfide precipitation

# data[].attributes.body
-hydroxide precepitation
-sulfide precipitation
-carbonate precipitation

# data[].attributes.body
1. Hydroxide precipitation
2. Sulfide precipitation
3. Hydroxide precipitation

# data[].attributes.body
-Potential generate toxic hydrogen sulfide gas
-Potential to release of excessive sulfide in the effluent which may require post treatment

# data[].attributes.body
- Sulfide precipitation
- Carbonate precipitation
- Hydroxide precipitation.

# data[].attributes.body
-Hydroxide precipitation
-sulfide precipitation
-Carbonate precipitation

# data[].attributes.body
NOR FARAH NADIRAH BINTI SHAHROM
1) Hydroxide precipitation
2) sulfide precipitation
3) carbonate precipitation

# data[].attributes.body
1. Hydroxide pricipitition
2. Sulfide pricipitition
3. Carbonate pricipitition