Developing compact sewage treatment system solutions

Wednesday, October 12, 2016

Approximately half of Brazil's population lacks sewage collection and treatment coverage and the answer to that may be by installing compact sewage treatment systems in some cases, an option currently being offered by local sanitation company Mizumo.

Join BNamericas in our one-on-one with managing director Hélcio da Silveira as we talk about sewer system building tips, in addition to company investment plans and revenue expectations.

BNamericas: The company has seen revenues increase in recent years. However, as 2016 is a difficult year for the economy, do you expect this trend to continue?

Silveira: Yes, projects this year are moving along as planned and we're expecting 2016 revenue to grow some 15% year-on-year, practically in line with the upward trend we've seen in the last few years.

Since we started operations some 15 years ago, more than 1,850 projects have been started. Coming into the new year, we intend to continue launching new projects, discovering the most cost effective way to guarantee efficiency and peace of mind for our clients.

BNamericas: Is the company making any key investments you'd like to highlight?

Silveira: Well, Mizumo manages the largest industrial park for the production and manufacture of sewage treatment plants in Brazil. It's located in the city of Pompeia in São Paulo state.

At these facilities, we continuously invest in research and development, maintaining our focus on sustainable and environmentally-friendly sewage collection and treatment service solutions for households and small businesses.

BNamericas: Could you tell me a little bit about Mizumo's integrated sewerage system called SIM?

Silveira: Due to the importance of technical parameters, we kicked off SIM last year. It's a management system aimed at overseeing the seven stages of our manufacturing and implementation process. Those stages are surveying, project design, application planning, environmental licensing, installation, training and service.

Mizumo's tower treatment facilities (CREDIT: Mizumo). 

BNamericas: What specific technical aspects are important when overseeing the construction and maintenance of sewerage systems?

Silveira: Besides a well-rounded understanding of the subject, some of the important technical aspects to keep in mind are selecting the best location for the treatment plant and using the most appropriate equipment and peripherals for the job.

One must also remember to develop streamlined plans for ongoing future maintenance, in addition to assuring legal security when it comes to effluent disposal and considering the possibility of water reuse for non-potable purposes.

At Mizumo, we provide an array of differentiated engineering solutions so each of our projects is unique.

BNamericas: Could you tell us a little about Mizumo MF?

Silveira: We've recently launched a new compact sewage treatment system called Mizumo MF, which can be used for homes and small commercial and industrial operations. Due to its size, it can be deployed in densely populated urban districts, as well as rural areas.  

Mizumo MF (CREDIT: Mizumo).

The system serves 6-10 people and is modular, meaning that it can be expanded to satisfy an increase in demand.

It has an initial flow rate of 0.96m³/d and requires a small deployment area from 2m3-3m3. Installation, which takes 24 hours on average, can be carried out above or below ground level. Depending on the system acquired by the client, it can use biological treatment, as well as aerobic, anaerobic and disinfection stages.

Currently, these systems achieve a biological treatment efficiency factor of 60%, 80% and 90%. In the case of the latter, the water can be reused for non-potable purposes as stipulated under resolution 430 from Brazil's environmental council Conama.

As for maintenance, it's quite simple and can be carried out by the user of the facility. This is one of the quick and simple small-scale solutions we offer. 

About the company

Founded in 2001 and based in the city of São Paulo, Mizumo builds compact wastewater treatment systems and technical parts. It is a division of Brazil's Grupo Jacto, which has operations in agribusiness, transport, high-pressure cleaning equipment, plastic processing and electric cars, among others.