Question

what are the Mechanical treatment, biological treatment and Physico-chemical treatment for Municipal waste the Sultanate of Oman. and what are the economic, environmental and social impact of these treatments.

Answer 1

● A mechanical biological treatment system is a type of munciple waste processing facility that combines a sorting facility and a form of biological treatment such as composting or anaerobic digestion.

MBT plants are designed to process mixed household waste as well as commercial and industrial wastes.

● They can also done separately like sorting in mechanical treatment and composting and anarobic digestion in biological treatment.

● Physico-chemical treatment of wastewater focuses primarily on the separation of colloidal particles. This is achieved through the addition of chemicals (called coagulants and flocculants).

◆ The results showed that raw Munciple solid waste management by landfill (mechnical method) was the worst management option because it affects the ground water quality.

Composting (biological), Incineration (physicochemical) the large amounts of chemicals consumption for fly ash and exhaust treatment were also issues leading to relatively higher life cycle environmental, social and economical impacts.

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