A cost-effectiveness of a specific waste treatment technique is very
important factor when making the decision to invest in a waste treatment
facility. Waste treatment can bring economic benefit through the value of
product: recycled materials, the compost, the generated electricity, or heat.
However, the expected economic benefits depend on many factors: the
investment costs and operating costs of the waste treatment facility,
revenues, the market price of the product obtained by waste treatment etc.
The investment and operating costs and the revenue also depend on the amount
of treated waste. This paper presents a mathematical model for evaluation of
cost-effectiveness in the waste treatment technique with energy recovery
depending on the amount of waste, i. e. evaluation the minimum amount of
waste to be treated for a cost-effective waste treatment technique with
energy recovery. To develop the mathematical model, a socio-economic analysis
was used. The model is applied to calculate the lower limit of
cost-effectiveness in the waste treatment techniques with energy recovery:
incineration and anaerobic digestion, in the city of Nis, Serbia, as a case
study. The obtained results show that the amount of waste currently generated
in the city of Nis is not sufficient for the cost-effective incineration
treatment, but with the currently available amount of waste, anaerobic
digestion is the waste treatment that can be operated without losses in the
city of Nis.
Dimensionless Analysis on the Characteristics of Pneumatic Booster Valve with Energy Recovery