Laboratory investigations have been carried out to study the influence of process failure modes on organics emission during the incineration of hazardous sludge. The thermal, temporal and fuel-oxidant mixing failure modes were tested. They were simulated by holding the first combustion temperature at 400°C and varying the after-burning one between 600 and 1100°C, the after-burning residence time between 1 and 3 s and the excess air between 30 and 160%. Results showed that the thermal failure mode is the most important factor controlling the number and concentration of emitted organics leading to the formation of over 70 compounds at after-burning temperature of 600°C. At higher after-burning temperatures emissions are controlled by the fuel-oxidant mixing failure mode and, only when the after-burning is 800°C and the oxygen is 160% over the stoichiometric value, by the temporal failure mode. Based on results obtained some suggestions for reducing emissions of toxic organics in full-scale incinerators are given.
Skip Nav Destination
Article navigation
Research Article|
December 01 1997
Lab-scale evaluations on formation of products of incomplete combustion in hazardous waste incineration: influence of process variables
G. Mascolo;
G. Mascolo
*C.N.R.- Istituto di Ricerca Sulle Acque, Via F. De Blasio 5, 70123 Bari, Italy
Search for other works by this author on:
L. Spinosa;
L. Spinosa
*C.N.R.- Istituto di Ricerca Sulle Acque, Via F. De Blasio 5, 70123 Bari, Italy
Search for other works by this author on:
V. Lotito;
V. Lotito
*C.N.R.- Istituto di Ricerca Sulle Acque, Via F. De Blasio 5, 70123 Bari, Italy
Search for other works by this author on:
G. Mininni;
G. Mininni
**C.N.R.- Istituto di Ricerca Sulle Acque, Via Reno 1, 00198 Roma, Italy
Search for other works by this author on:
G. Bagnuolo
G. Bagnuolo
*C.N.R.- Istituto di Ricerca Sulle Acque, Via F. De Blasio 5, 70123 Bari, Italy
Search for other works by this author on:
Water Sci Technol (1997) 36 (11): 219–226.
Citation
G. Mascolo, L. Spinosa, V. Lotito, G. Mininni, G. Bagnuolo; Lab-scale evaluations on formation of products of incomplete combustion in hazardous waste incineration: influence of process variables. Water Sci Technol 1 December 1997; 36 (11): 219–226. doi: https://doi.org/10.2166/wst.1997.0414
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Impact Factor 1.915
CiteScore 3.3 • Q2
13 days submission to first
decision
1,439,880 downloads in 2021