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Optimisation of chemical and physical pre-treatments in a platform for the treatment of liquid industrial wastes

Optimisation of chemical and physical pre-treatments in a platform for the treatment of liquid industrial wastes
Optimisation of chemical and physical pre-treatments in a platform for the treatment of liquid industrial wastes
The paper presents the results of management of the chemical?physical pretreatment step in a platform for the treatment of liquid wastes. The aim of the work was to optimize the organization of the flow scheme to achieve the best performances in the chemical?physical pretreatment step. Starting from the initial situation (Jan?Apr 1997), the types, amounts, and characteristics of the wastewater and the treatment methodologies were critically discussed. The process management was subsequently (Jul?Aug 1997) modified in order to take advantage of the synergic power among the different liquid wastes to reduce the use of strong oxidative treatments (i.e., the Fenton process) which determined, during the first research period, a large increase of the total dissolved solids and salinity in the effluent, without meaningful chemical oxygen demand reductions. Moreover, the N?NH4 removal was performed by struvite precipitation, using phosphate-rich wastewater or pure chemicals. A good indicator of the reliability of the new flow scheme was the salinity reductiona loss of 2800 mg/Lduring the first 2 months. A larger reduction was obtained after a further 3 months (total dissolved solids passed from 17000 to 5000 mg/L). Therefore, the effluent characteristics became suitable for the following biological process.
0888-5885
4506-4512
Bolzonella, D
554b33d4-ce6f-4d05-93ac-fcc5d49187f3
Battistoni, P
05bd4392-6721-4365-a826-df1171a4a74a
Boccadoro, R
8c085f68-359e-42d7-b86f-6576411ad16c
Pezzoli, S
76f200da-69bc-4d34-aa51-a2b671d698d2
Bolzonella, D
554b33d4-ce6f-4d05-93ac-fcc5d49187f3
Battistoni, P
05bd4392-6721-4365-a826-df1171a4a74a
Boccadoro, R
8c085f68-359e-42d7-b86f-6576411ad16c
Pezzoli, S
76f200da-69bc-4d34-aa51-a2b671d698d2

Bolzonella, D, Battistoni, P, Boccadoro, R and Pezzoli, S (2001) Optimisation of chemical and physical pre-treatments in a platform for the treatment of liquid industrial wastes. Industrial & Engineering Chemistry Research, 40 (21), 4506-4512. (doi:10.1021/ie010006c).

Record type: Article

Abstract

The paper presents the results of management of the chemical?physical pretreatment step in a platform for the treatment of liquid wastes. The aim of the work was to optimize the organization of the flow scheme to achieve the best performances in the chemical?physical pretreatment step. Starting from the initial situation (Jan?Apr 1997), the types, amounts, and characteristics of the wastewater and the treatment methodologies were critically discussed. The process management was subsequently (Jul?Aug 1997) modified in order to take advantage of the synergic power among the different liquid wastes to reduce the use of strong oxidative treatments (i.e., the Fenton process) which determined, during the first research period, a large increase of the total dissolved solids and salinity in the effluent, without meaningful chemical oxygen demand reductions. Moreover, the N?NH4 removal was performed by struvite precipitation, using phosphate-rich wastewater or pure chemicals. A good indicator of the reliability of the new flow scheme was the salinity reductiona loss of 2800 mg/Lduring the first 2 months. A larger reduction was obtained after a further 3 months (total dissolved solids passed from 17000 to 5000 mg/L). Therefore, the effluent characteristics became suitable for the following biological process.

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More information

Published date: 2001
Organisations: Civil Engineering & the Environment

Identifiers

Local EPrints ID: 189017
URI: https://eprints.soton.ac.uk/id/eprint/189017
ISSN: 0888-5885
PURE UUID: 310726de-25a2-4f16-878d-33d78c59a166

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Date deposited: 01 Jun 2011 11:07
Last modified: 16 Jul 2019 23:31

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