COLLEGE OF ENGINEERING
DEPARTMENT OF CHEMICAL ENGINEERING
INTERNSHIP REPORT
Hosting Company: MOHA SOFT DRINKS INDUSTRY S.Co
Duration of the internship: [3 months: June 11 to Sep. 14]
University Supervisor:Dr. Ibsa Neme
Company supervisor: Inst. Milkessa
Prepared by: YORDANOS MOLLA
ID number: ETS 1765/14
Submission date: July 22,2025
Company Orientation and Introduction
MOHA Soft Drinks Industry S.C. is one of the largest bottling and beverage
companies in Ethiopia. It operates under franchise agreements with The Coca-Cola
Company and produces a range of carbonated soft drinks and bottled water. The
factory adheres to international standards in production, sanitation, safety, and
quality control.
During my orientation, I was introduced to:
◦ The company's organizational structure
Factory layout and safety procedures
◦ Basic Good Manufacturing Practices (GMP) and hygiene protocols
◦ Quality assurance measures and sustainability goals
Initial Tasks Assigned
During the first weeks of my internship, I was assigned the following tasks:
◦ Observing the entire manufacturing process, from raw material intake to
packaging
◦ Collecting data for material and energy balance calculations
◦ Assisting quality control lab technicians with sample analysis
◦ Learning about water treatment systems and process instrumentation
◦ Interpreting PFD (Process Flow Diagrams) and basic mass/energy balance
concepts
Description of the Manufacturing Process
The factory follows a systematic beverage production process, including:
The beverage production process at MOHA consists of the following main stages:
a. Water Treatment
Raw water is filtered, softened, chlorinated, and disinfected using UV before being
used in production.
b. Syrup Preparation
Sugar is dissolved in hot treated water and mixed with flavoring concentrates to
produce syrup. This stage requires precise control of ratios.
c. Carbonation
CO2 is dissolved under pressure into chilled treated water to produce carbonated
water.

d. Mixing & Blending
The carbonated water and syrup are mixed in the right proportions to form the final
beverage product.
e. Filling and Packaging
The beverage is filled into PET bottles or cans, sealed, labeled, and packed.
Clean-in-place (CIP) systems ensure equipment cleanliness between batches.

Material and Energy Balance (Preliminary Overview)
Material Input (Example - 1 L of Carbonated Beverage)
Treated Water: ~0.97 L
Sugar: ~100 g
Flavor/Concentrate: ~2-3 g
CO₂: ~3-5 g
Energy Input
Electricity for pumps, motors, and control systems
Thermal energy for sugar dissolution and cleaning processes
Compressed air for pneumatic operations
Output
Product: 1 L of carbonated beverage
Waste: Minimal—mostly wastewater, packaging scrap, and CO₂ loss
Detailed material and energy balance calculations will follow as more accurate data
is collected from the plant operations.
Conclusion
The first weeks of my internship at MOHA have been productive. I have developed a
clear understanding of the end-to-end beverage manufacturing process. I am
currently building skills in process data collection, technical reporting, and
energy optimization. Further tasks will include detailed material balance
calculations, waste management study, and process improvement suggestions.
