In response to the increasingly stringent environmental requirements, we have developed HBNA improved HBNB type domestic sewage treatment plant, which can assist shipowners to cultivate strains of bacteria, and the effluent index can meet the requirements of IMO.MEPC.227(64) "2012 Domestic sewage treatment plant discharge standards and performance test implementation guidelines" and GB3552-2018 "Ship water pollutant discharge standards", Article 5.2.2 and 5.2.4.

The improved sewage treatment plant uses a combination of oxidation and degradation, microfiltration, ultrafiltration, physical disinfection and other processes with mobile biological fluidized bed process (MBBR) and membrane biological reaction process (MBR) to deal with sewage from the ship (also applicable to institutions, schools, hotels, residential and other factories and mines enterprises) toilets, kitchens, bathrooms and other sewage. The new built-in membrane technology solves the contradiction between continuous compliance and the high cost of consumables, and the design is simple and easy to maintain.

Modular design, using split design, convenient for customers to transport and replace equipment. It can be customized according to the actual size requirements of customers.