This document discusses potential improvements to the wastewater treatment plant (WWTP) at PT. Batamindo Investment Cakrawala. It proposes using new software programs to model and optimize the WWTP system. It also suggests implementing an electrocoagulation system to further purify the water and produce organic sludge that can be processed through an aerobic system to generate methane gas. This would help reduce the WWTP's yearly sludge disposal costs, lower maintenance expenses, and create a new revenue stream from biogas. However, it notes that these changes would require new investments, engineering expertise, and supportive business policies to be implemented successfully.

1. Improvement and development in WWTP
PT. Batamindo Investment Cakrawala
Idea From
Modeling Wastewater Treatment Plant
Unesco IHE Institute for WaterEducation
Delft, the Netherlands
Rahma Dewi, Lab. Executive, WWTP
PT. Batamindo Investment Cakrawala

2. Thank You
To:
1. John Sulistiawan
2. James Lee
3. M. Noor
4. Bambang.S

3. Out Line
 Focus Subject
 WWTP Life cycle
 WWTP Current Condition
 WWTP in Great Idea

4. Focus Subject
 Aquasim Software, this is the basic software for
building a new system and study how to input some of
the variables to make the wastewater treatment system
complete which results in perfect result effluent
condition

5.  Biowin Software, is a simulation program. It
simulates an operational system with new
probabilities based on mathematical formulae

6. WWTP Lifecycle
System
choice
Problem
solving
Future
prognosis
Preliminary
design
Final design
Functional
design
Operator
education
Wwtp start-
up
optimization
Reduced Saving
Low possible saving e.g
cost of bulking sludge
Large possible savings e.g choice
surface or bubble aerator
Medium possible savings
e.g cost of reduced
effluent quality
Very large possible savings e.g.
choice membrane or conventional
system

7. What about our WWTP now?
 ± 8.000 m3 every day
 300 Ton Sludge production every year
 Disposal Cost: Rp.3.000.000.000 every
year
 Effluent discharge quality based on KLH
regulation

8. Challenges…….

9. The main idea is?

10. Considerable………

11. Possibility for the future
Wase water
New Water
Bio Gas

12. Breakthrough Idea……..
 Use New Improvement in Purifying water By
Electro Coagulation System
 Re- Use Sludge become BIOGAS

13. What is Electro Coagulation?
 The Idea is come from electrolysis process
 There are some MAIN UNIT that must be
developed, they are :
a. Chamber
b. Electroplating
c. Variable process control System

14. Block Process Electro
Coagulation
Become
Organic Sludge
Only sugar
needed
Sludge
New water
(W-1)
Electro
Coagulant
New water
(W-2)
Waste
Water TUNEL

15. Benefit Using
Electro Coagulant System
 Simple Process
 Low Cost Investment
 High Quality Product
 Low maintenance
 Long term Life Time

16. Weakness point in Electro
Coagulant
 There are problem with chemical suppliers ,
cause much of their product no need
anymore
 There are problem with “ Departement
Tenaga Kerja” cause the system no need
much person

17. How about Sludge..????
 Sludge will changes become organic sludge
cause only sugar fill in
 Sludge processing by An Aerobe System
 And then just collect the methane gas
(Simple Process)

18. Benefit An Aerobic System
 Reduce for Yearly Disposal Cost Sludge
 Reduce Maintenance Sludge such as: Land
and Operator cost
 Take much Revenue From GAS Methane
(predicted)

19. Weaknes Poin Use An Aerobic
System
 Need New Investment and Research
 Need expert Bio Gas Engineer
 Need Extremely Business Policy

20. Sustainable Quality
Sustainable Business
Thank You 
Rahma Dewi