Reference flow in the MFA for which is suitable the technology
Brine from hide treatment activities
The sewage system collects all the municipal and (authorized) industrial wastewater to reach the nearest wastewater treatment plant. The residues collected in the sewer have not an EWC and the centralized plant contributes to an “economy of scale” effect. Formally speaking, the solid waste amount is reduced and stopping trips of tank trucks have relevant environmental benefits. On the other hand, the direct discharge in sewage system could be not allowed due to high concentration of main contaminants (COD, ammonia, chloride); therefore a pretreatment should be envisaged.
Organizative processes to support closing the loops
Strong collaboration among involved stakeholder is crucial to ensure the sewer installation: Company, Public Administration and multiutility.
Possible limiting factors
The installed pipes run more than 1 km far away from the productive plant. High capital costs and the involvement of PA could slow down the implementation of the missing branch. Limits to discharge in sewage system force to install wastewater pretreatment.
PP’s opinion of the technology
Considering the context, the sewage system can be considered as a long term solution.
Concept and conclusions how the technology can affect the CE effect
The management of the industrial brine through the sewage system could be the easiest and most efficient solution due to low running cost (annual fees + authorization procedures + monitoring analysis). The limiting factor is the long distance from the nearest main pipe that means high capital costs for the roadworks and time to be compliant with bureaucratic requirements.
Charts, photo, diagrams