PLANT DESIGN PROJECT - RESOURCE RECOVERY FROM WASTEWATER TREATMENT PLANT INTO VALUE ADDED PRODUCTS
- Amar Haiqal Che Hussin
- Aug 1, 2021
- 1 min read
Updated: Nov 17, 2021
Acknowledgement
I would like to give credit and expression of gratitute to Ikmal Haziq, Lee Zee Khai, Amira Masturina and Nur Amieza for completing this plant design project together. Not to forget our supervisor, Dr. Noorfidza Yub Harun
Case Study
To put short, this project is about the feasibility of recovering materials from the wastewater and process it into value-added product. Apart from that. each members were assigned to design a major equipment involved in the plant design
Plant Design
Resource we want to recover
Methane from wastewater sludge through anaerobic digestion
Bio-oil and char from pyrolysis of sludge
Simulation Snippet
For this project, we used Aspen HYSYS for chemical plant simulation and CapdetWorks for wastewater treatment plant simulation and economic estimation. Note that simulation of wastewater in HYSYS (shown below) use multiple hypothethical component to simulate wastewater components
The sludge from the wastewater treatment plant goes either pyrlolysis reactor or anaerobic digestor. Pyrolysis process breaks down dried sludge to release gases and char. The gas were then condensed into bio-oil
Plant Design
Design of Major Equipment (Dissolved Air Flotation)
Basis of Selection
Technical Drawings
Data Sheet
Economic Analysis
Preliminary Wastewater Treatment Plant Economic Analysis
The estimated cost and the wastewater design were done in CapdetWorks
Economic Assumptions
3 years of construction, 15 years of operation
24/7 operation all year
Constant annual revenue
OPEX increment +5%/year
Income Tax = 24% Net Profit
Capital Expenditure
Operating Expenditure
Economics Evaluation
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