Econet delivers a containerised wastewater treatment system to the SIA Dimdini food factory in Latvia. In addition to improved cleaning results, the factory aims to achieve significant cost and chemical savings with the new solution.
Dimdini produces a range of salads and juices for the consumer market.
“The client’s problem was the sugar and intense red colour of the beetroot in the wastewater. The goal is to make the treated wastewater so clean that it can be discharged directly into nature,” says Econet’s CEO Heikki Viitanen.
Econet’s container treatment plant will reduce SIA Dimdini’s high current wastewater charges using biological treatment and electrocoagulation.
Econet is responsible for the design and delivery of main components, installation supervision, commissioning and training of the client’s staff. The project will be completed in early 2024.
Containerised plants are growing in popularity
Containerised systems have many advantages over built-in plant room installations:
- Space-efficient wastewater treatment solution: no need for construction permits and new buildings.
- Optimal treatment results: a customised mix of mechanical, chemical, and biological treatment methods with a small footprint.
- Cost-effective: easy-to-maintain compact solution.
- Mobile water treatment: the ability to relocate when needed.
- Modularity allows for easy expansion as needed.
“The main advantages of a container are its easy commissioning and its suitability for varying loads. In addition, it is easy to place in a limited space. For these reasons, there is now a high demand for container treatment plants for a wide range of needs,” says Econet’s Project Engineer Severi Lintula.
Electrocoagulation – an ecological method for treating industrial wastewater
Laboratory tests were conducted to verify the effectiveness of electrocoagulation in treating the client’s wastewater.
“Electrocoagulation is a wastewater treatment technology whose main principle is to replace the chemical coagulation stage by introducing iron or aluminium ions to wastewater directly from metal electrodes using electrical current, rather than traditional chemical coagulants such as ferric sulphate or aluminium chloride,” says Lintula.
Dimdini’s treatment process reduces chemical consumption and requires little electricity, which was an important selection criterion for the client.
- Electrocoagulation can be used to treat solutions containing organic residues, dyes, pigments, and effluents containing metals.
- By reducing chemicals in the treatment process, the operation costs of the wastewater treatment plant are reduced, and logistics are simplified.
- Electrocoagulation also removes other dissolved metals from wastewater.
<< Back to News
