The organization of an efficient and reliable sewerage system in private homes and countryside hotel complexes is not an easy task. It is necessary to choose an engineering solution that will be optimal for a specific location, considering the soil type, the maximum depth of ground freezing in winter, the groundwater level, seasonal flooding of the area, and other factors.
A structural solution for constructing a local wastewater treatment system in settlements not equipped with centralized sewerage is septic tanks—made of concrete, metal, or plastic (the latter being preferable from an environmental standpoint).
The process of wastewater treatment in septic tanks is ensured by biological processes of heterotrophic organisms and can proceed in either an aerobic or anaerobic manner. Today, to accelerate the decomposition of organic waste in collection tanks (septic tanks or conventional cesspools), microbial bioactivator preparations are used. These agents also liquefy sludge deposits, eliminate unpleasant odors, prevent blockages in sewer pipes, and improve the startup of new systems.
A striking example of an effective bioactivator is Evogen® Septic Plus (USA), developed using patented technology for autonomous drainage sewer systems based on five strains of Bacillus microorganism degraders. Experiments conducted in both laboratory and real-world conditions have proven that the Evogen® Septic Plus microbial consortium possesses a high decomposition potential and successfully processes organic compounds in wastewater, including fats. The presence of surfactants (detergents such as laundry powders, shampoos, and various soaps) in the wastewater does not affect microbial activity or the purification results. Moreover, after using the bioactivator, the amount of nitrogen- and phosphorus-containing compounds in the septic wastewater is reduced, leading to the disappearance of characteristic unpleasant odors.
The presence of free cellulase in Evogen® Septic Plus solves the problem of paper waste disposal in household wastewater, which often causes septic pipe blockages and increases the volume of dense sludge deposits.
The effective synergy of microbial strains in the bio-preparation functions within a wide temperature range (+5°C to +50°C) and pH levels (4.0–11.0). Such tolerance to external factors allows Evogen® Septic Plus to be used successfully throughout the year.
In Central European climates, the temperature of wastewater in septic tanks remains around +10°C for most of the year. However, during harsh winters, even in insulated septic tanks, the water temperature may drop to +4–5°C. Hot water inflow into the septic system (such as from a sauna or bathhouse) will not cause blockages due to microbial die-off or excessive sludge accumulation.
Of course, uninterrupted operation of a local sewer system with Evogen® Septic Plus is possible with regular and proper use of the biodegrader. For example, according to manufacturer recommendations, the product should be applied monthly, with an initial double dose (the regular dose is one water-soluble packet per 5–6 m³).
Consistent application of the bio-preparation in the septic system ensures the formation of a protective microbial biofilm, even in hard-to-reach drainage pipes between chambers, preventing their clogging with fats and organic deposits.
The versatility, effectiveness, innovative composition, and ease of use of the Evogen® Septic Plus biodegrader make it an indispensable and eco-friendly solution for treating household wastewater in small sewerage systems, including all types of septic tanks.