Heat Recovery from De-inking Effluent
De-inking effluents are usually discharged at relatively higher temperatures and they certainly represent the possibility of low-grade heat recovery. The installation of heat exchangers in the effluent discharge system can recover some of this heat for mill uses such as plant water heating.
| Development Status | Products |
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Commercial |
Recovered Pulp |
Heat Recovery from De-inking EffluentCosts & Benefits
| Parent Process: Recovered Fiber Pulping | |
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| Energy Savings Potential |
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| CO2 Emission Reduction Potential | |
| Costs |
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For a mill in the US having effluent streams at 49 °C and flow rate of 2.7 m3/min, the installation of a heat exchanger to recover heat and generate warm filtered shower for the mill's paper machines is estimated to reduce boiler fuel consumption by 39 000 GJ/y. Heat Recovery from De-inking Effluent Publications
Energy Efficiency Improvement and Cost Saving Opportunities for the Pulp and Paper Industry
This Energy Guide discusses energy efficiency practices and energy-efficient technologies that can be implemented at the component, process, facility, and organizational levels.