Expansion of-water-treatment-plant
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Transcript of Expansion of-water-treatment-plant
King Fahad University of Petroleum & King Fahad University of Petroleum & MineralsMinerals
Term ProjectTerm Project
Expansion of Water Expansion of Water Treatment PlantTreatment Plant
Sagar M. Al-Anazi
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1. Introduction2. Information Phase3. Functional Phase 4. Creative Phase5. Evaluation Phase6. Development Phase7. Implementation & Presentation
Presentation OutlineC
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Reverse Osmosis Process
Feed Pretreatment Process
RO Process
Demineralization
ProcessCondensate Water Tanks
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The Existing Situation
The existing plant is unreliable plant and has the following problems:
1. Type of membranes (HFF) is obsolete. 2. There are reliability concerns.3. High maintenance cost comparing with other RO plant.4. More chemical consumption.5. The other water treatment plants (old plants) will be
demolished due to aging.
Information PhaseC
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A company has decided to upgrade the existing water treatment plant the (RO Plant) to overcome the existing problems and to produce 1000 gpm industrial water instead of 400 gpm .
Information PhaseC
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• Expand the existing water treatment plant by providing 16 new RO Units.
• Use new type of membranes.• Minimize the chemical consumption.• The plant production should meet the
required water quality.
Information PhaseObjectives or required
Criteria
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The original Design
• Install additional pretreatments Equipments.
• Install 16 RO Units using SW Membranes to reduce water TDS to 20 ppm.
• Install additional 4 Deminalizers to reduce the TDS to less than 5 ppm.
• Install new Deaerator to remove gases.
Information PhaseC
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Information Phase
ContactMajor Points
AESRO Vendor
SIDMASRO Vendor
CSDSaudi Aramco
Consultation Record
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Cost Data
ParticularUnit Price)$( Cost)$(
6 Pretreatments Filters
150,000900,000
16 RO Units250,0004,000,000
One Deaerator500,000500,000
4 Deminilizers1,000,0004,000,000
Chemical Injection Facilities
75,000150,000
Information Phase
Tot. Cost = $ 9,550,000
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Functional Phase
Identify the present Function
Verb Noun
Provide Industrial Water
Support Operations
Verb Noun
Produce Industrial WaterSupport Operations
What does it now do?Item description:
What must it do?Objective or required
criteria:
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Functional Phase
WhyFunctionHow
To Support Plant
Operations
Produce industrial
Water
Expansion of the RO Plant
Functional Worksheet
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Creative Phase
• Use Sea water spiral wound membranes
• Eliminate Deminilizeras and related equipments.
• Eliminate Deareator.
Generate Ideas-:
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Evaluation Phase
Potential Cost Benefit
Time to implement
Probability of implementation
Cost to develop
Use Sea water spiral wound membranes
Eliminate Deminilizeras
Eliminate Deareator
Tot. Rank
Feasibility Ranking
2 1077
10 9
8 810
10
8
10
34
39
26
2
1
3
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IdeaAdvantageDisadvantageRank
Use Sea water spiral
wound membranes
High water quality
TDS < 5 ppm
Required close monitoring
3
Eliminate Deminilizera
s
Reduction in the cost
Reduction in chemical
consumption
Increase the load on the membranes
1
Eliminate Deareator
Reduction in the cost
Increase the load on other
plants
2
Evaluation Phase
Ideas Comparison
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Evaluation Phase
A. Initial Cost
B. Operation & Maintenance
C. Reliability
D. Environmental Impact
How Important
3. Major Preference 2. Medium Preference
1. Minor Preference
Raw ScoreAssigned
WeightCriteria
Determining Weight for Evaluation
7
4
3
1
6
2
5
10
BCD A A-2 A-2 A-3
B/C BB-3
CC-2
D
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5EEEERank
4VGVGVGVG
3GGGG
2FFFF
1PPPP
SUP TOT
Idea 35EEEERank
4VGVGVGVG
3GGGG
2FFFF
2PPPP
SUP TOT
Idea 1 5EEEERank
4VGVGVGVG
3GGGG
2FFFF
1PPPP
SUP TOT
IdeasWT
Assigned Value
Total 7 4 3 1
Initial Cost
Oper & Maint.
Envir. Impact
Reliability
Use Sea Water SW Membranes
Idea 2
Eliminate Deminilizers
Eliminate Deareator
Evaluation PhaseEvaluation
Matrix
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42
56
47
Development Phase
Additional Information
Additional information was collected to develop the alternatives. 1. Equipments specifications.
2. VE team consulted RO manufactures like Toray (website) .
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Development Phase
The Initial Cost of Deminilizer = $ 1,000,000
Annual maintenance cost = $ 13,000
Salvage value = $ 30,000
Interest rate = 5%
Service life = 20 years
Then, P = 1000,000+ 13000(12.4622) – 30,000 (0.3769)
= $ 1,150,702.0
The original Life cycle of Deminilizers
1,000,000
30,000
13,000
200
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Development Phase
Original: Install 4 Deminilizers.
Proposed: Eliminate the deminilizers
$ 4,000,000
Total CostItem
$ 0
Saving in Initial Cost = 4,000,000
Original Life cycle cost = 4,602,808Proposed Life cycle cost = $ 0Saving in Life cycle cost = 4,602,808
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Development Phase
The Initial Cost of Deaerator = $ 500,000
Annual maintenance cost = $ 6,000
Salvage value = $ 12,000
Interest rate = 5%
Service life = 20 years
Then, P = 500,000+ 6000(12.4622) – 12,000 (0.3769)
= $ 570,251.0
The original Life cycle of Deaerator
500,000 12,000
6,000
200
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Development Phase
Original: Install a Deaerator
Proposed: Eliminate the deaerator
$ 500,000
Total CostItem
$ 0
Saving in Initial Cost = 500,000
Original Life cycle cost = $ 570,251.0Proposed Life cycle cost = $ 0Saving in Life cycle cost = $ 570,251.0
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Development Phase
The Initial Cost of RO Unit = $ 250,000
Annual maintenance cost = $ 8,000
Salvage value = $ 9,000
Interest rate = 5%
Service life = 20 years
Then, P = 250,000+ 8,000(12.4622) – 9,000 (0.3769)
= $ 346,306
The original Life cycle of RO Unit
250,000 9,0008,000
200
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Development Phase
The Initial Cost of RO Unit = $ 270,000
Annual maintenance cost = $ 8,000
Salvage value = $ 9,000
Interest rate = 5%
Service life = 20 years
Then, P = 270,000+ 8,000 (12.4622) – 9,000 (0.3769)
= $ 366,306
The proposed Life cycle of RO Unit
270,000 9,0008,000
200
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Development Phase
Original: Install 16 RO Units
Proposed: Install 16 RO Units and Use Sea Water Membranes
$ 4,000,000
Total CostItem
$ 4,800,000
Increase in Initial Cost = $ 800,000
Original Life cycle cost = $ 346,306/Unit = $ 5,540,896Proposed Life cycle cost = $ 366,306/unit = $ 5,860,896
Increase in Life cycle cost = $ 320,000
Saving in Initial Cost = $ 4,180,000
= 44% Reduction
ParticularUnit PriceCost)$(
6 Pretreatments Filters
150,000900,000
16 RO Units270,0004,320,000
Chemical Injection Facilities
75,000150,000
Proposed Cost = $ 5,370,000 Original Cost = $ 9,550,000
Development PhaseC
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Total Saving
Value Study ProposalVE team recommended the following proposal to design the water treatment plant:-
1. Use sea water membranes.2. Eliminate the deminilizers. 3. Eliminate the deaerator.
The final product of sea water SW membranes will meet the requirement of water quality (TDS will be less than 5 ppm). Also, the new plant production which is 1000 gpm will not be affected by this change.
Using sea water membranes will increase the initial cost of the membranes by $ 800,000 but will eliminate the need for deminilizers and dearteator.
Development PhaseC
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Proposal Advantages 1. Reduce the initial cost
2. Eliminate unrequited equipments.
3. Minimize chemicals consumption.
4. Reduce the maintenance cost.
5. Safety.
Development PhaseC
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1. How should it be implemented? VE proposal will be discussed with the engineering
and project team to remove any roadblocks prior to management presentation
2. What should be changed and in what sequence? The proposed case will be discussed with
engineering team.
3. Who should do it? Engineering department.
4. How long should it take? 5 months
5. Any deadline required? Before issuing the IFC package.
Implementation PhaseC
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Thank youQ & AC
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