RENOVATE SEPTIC TANKS TO ON-SITE WASTEWATER TREATMENT SYSTEMS

Technical nature of the solution

To achieve that purpose, the useful solution proposes a method of converting existing conventional septic tanks into domestic wastewater treatment tanks at source. These tanks not only handle the problem of feces and urine discharged from households but also thoroughly treat wastewater from bathrooms, washing machines and kitchens

The technical essence of the useful solution is to create a treatment tank with a new structure consisting of two anaerobic compartments, two aerobic compartments, a filter settling compartment and a sterilization chamber on the basis of the existing septic tank, and at the same time adding microbial substrates of different shapes and sizes suitable for each microorganism strain to adhere and grow. This type of treatment tank will apply the autogenous microbiological method to treat wastewater.

The method of renovate septic tanks to on-site wastewater treatment systems includes the following stages:

• Dredge and clean the septic tank. Divide the tank into six compartments of suitable volume using partitions
• Install a pipe or chute system to design a suitable flow cycle
• Install microorganism carriers in the anaerobic and aerobic compartments 
• Install aeration lines for aerobic chambers and water circulation pipes transferring water from compartment 5 to compartment 1
• Seal up these compartments

The effect achieved by the useful solution

The utility-based septic tank renovation method is a particularly effective solution to renovate the old-style septic tanks currently existing in concentrated residential areas, urban areas, hospitals, and restaurants. or work, school, etc.
Conventional septic tanks, which can only handle waste from toilets, are not capable of handling wastewater containing detergents and soaps. Moreover, the treatment is not thorough, so the discharged water still has a bad smell and is not up to standard.

The septic tank renovation method according to a useful solution has solved this problem, which is to transform the traditional septic tank into a new type of septic tank capable of thoroughly treating not only the waste from the toilet, but also other types of domestic wastewater containing detergents or soaps, etc. Moreover, due to the use of old septic tanks, the cost of new septic tanks is low, acceptable to the majority of urban dwellers. . This is also an effective solution to the problem of treating domestic wastewater at source, which has long been a pressing issue for urban environmental managers.