4.4.1. Model Structure

Figure 8 shows the value chain considered in the waste sector and the key elements considered in the modelling of the sector at the different stages of waste management.

Models used on the cost and benefits analysis

Figure 8: Key elements represented for the waste management sector.

Technologies

Table 7. Waste and Wastewater Technologies

Subsector

Technology

Description

Solid waste

INORG_RCY_OS

Recycling of separated inorganic waste at final-disposal site

Solid waste

AD

Anaerobic digestion

Solid waste

COMPOST

Composting

Solid waste

LANDFILL

Landfill

Solid waste

NO_CONTR_OD

Open dump

Solid waste

COPROC

Co-processing

Solid waste

INCIN

Controlled incineration

Solid waste

OPEN_BURN

Open burning

Solid waste

SIT_CLAN

Disposal in clandestine sites

Solid waste

OSS_INORG

Separation of inorganic waste at final-disposal site

Solid waste

OSS_ORG

Separation of organic waste at final-disposal site

Solid waste

NO_OSS_BLEND

No separation of mixed waste at final-disposal site

Solid waste

NO_OSS_NO_COLL

No collection of mixed solid waste at final-disposal site

Solid waste

INORG_DCOLL

Differentiated collection of inorganic waste

Solid waste

ORG_DCOLL

Differentiated collection of organic waste

Solid waste

BLEND_NO_DCOLL

Undifferentiated collection of mixed waste

Solid waste

BLEND_NO_COLL

No collection of mixed solid waste

Solid waste

INORG_SS

Separation of inorganic waste at source

Solid waste

ORG_SS

Separation of organic waste at source

Solid waste

NO_SS

No separation of waste at source

Solid waste

T5TSWTSW

Total solid waste

Solid waste

LANDFILL_ELEC

Methane recovery in landfill to generate electricity

Wastewater

AERO_PTAR

Centralised aerobic treatment plant

Wastewater

AERO_PTAR_RU

Re-use of treated water from centralised aerobic plant

Wastewater

ANAE_LAGN

Anaerobic lagoon

Wastewater

ANAE_LAGN_RU

Re-use of treated water from anaerobic lagoon

Wastewater

SEPT_SYST

Septic system

Wastewater

LATR

Latrine

Wastewater

EFLT_DISC

Effluent discharge to aquatic environment

Wastewater

SEWER_NO_T

Untreated water in sewer

Wastewater

WWWT

Waste-water with treatment

Wastewater

WWWOT

Waste-water without treatment

Wastewater

SEWERWW

Collected waste-water

Wastewater

DIRECT_DISC

Uncollected waste-water

Wastewater

T5TWWTWW

Total waste-water

Wastewater

IWW

Industrial waste-water