Abstract
In this work, the fraction of construction and demolition
waste (C&D waste) complicated and economically not
feasible to sort out for recycling purposes is used to
produce solid recovered fuel (SRF) through mechanical
treatment (MT). The paper presents the mass, energy and
material balances of this SRF production process. All the
process streams (input and output) produced in MT waste
sorting plant to produce SRF from C&D waste are sampled
and treated according to CEN standard methods for SRF.
Proximate and ultimate analysis of these streams is
performed and their composition is determined. Based on
this analysis and composition of process streams their
mass, energy and material balances are established for
SRF production process. By mass balance means the overall
mass flow of input waste material stream in the various
output streams and material balances mean the mass flow
of components of input waste material stream (such as
paper and cardboard, wood, plastic (soft), plastic
(hard), textile and rubber) in the various output streams
of SRF production process. The results from mass balance
of SRF production process showed that of the total input
C&D waste material to MT waste sorting plant, 44% was
recovered in the form of SRF, 5% as ferrous metal, 1% as
non-ferrous metal, and 28% was sorted out as fine
fraction, 18% as reject material and 4% as heavy
fraction. The energy balance of this SRF production
process showed that of the total input energy content of
C&D waste material to MT waste sorting plant, 74% was
recovered in the form of SRF, 16% belonged to the reject
material and rest 10% belonged to the streams of fine
fraction and heavy fraction. From the material balances
of this process, mass fractions of plastic (soft), paper
and cardboard, wood and plastic (hard) recovered in the
SRF stream were 84%, 82%, 72% and 68% respectively of
their input masses to MT plant. A high mass fraction of
plastic (PVC) and rubber material was found in the reject
material stream. Streams of heavy fraction and fine
fraction mainly contained non-combustible material (such
as stone/rock, sand particles and gypsum material).
| Original language | English |
|---|---|
| Pages (from-to) | 2163-2170 |
| Number of pages | 7 |
| Journal | Waste Management |
| Volume | 34 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2014 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- solid recovered fuels
- construction waste
- demolition waste
- mechanical treatment
- waste management
