Renovating Wastewater Treatment System With Jokaso Technology

Date public: 29-05-2024||View: 2134

As production demand increases, wastewater treatment systems become an essential solution to protect the environment and human health. Currently, this issue is receiving significant attention from various media outlets, online news platforms, and government bodies. Among the technologies, the Jokaso system stands out. So, what advantages does Jokaso offer? Let's explore it with Đại Nam Environment Solutions.

1. When Should the Wastewater Treatment System Be Upgraded?

During production, companies may encounter signs indicating the need to upgrade their wastewater treatment systems. To meet the stringent standards set by the Ministry of Natural Resources and Environment for wastewater, let's identify some key signs that require attention:

1.1 Ineffective Operation of Microorganisms in the System

After a long period of operation, the system may show signs of degradation, necessitating inspection and upgrading to ensure efficient functioning.

Check whether the media still functions properly; typically, media should be replaced after one year of use.
Inspect the concentration of microorganisms in the treatment tank.
Ensure the air blower is working correctly, as it is crucial for supplying oxygen to the microorganisms in the wastewater treatment process.
Examine the support system to ensure it is operating normally and is not damaged.

1.2 System Degradation After a Period of Operation

Over time, production equipment in the system may degrade, so regular inspections are necessary to check whether the equipment is functioning correctly or showing signs of wear and tear, which can increase energy consumption and costs. Therefore, periodic maintenance and system upgrades should be conducted every six months.
Regularly inspect the level indicators and automatic control systems for signs of malfunction or operational errors to avoid disrupting the wastewater treatment process.

1.3 Actual Wastewater Treatment Capacity Exceeds Design Capacity

During system design, businesses may not always anticipate the need for expanded production. As a result, the actual treatment capacity may exceed the design capacity, failing to meet wastewater discharge standards. To address this issue, there are three solutions for upgrading the wastewater treatment system:

Construct additional treatment tanks such as sand filters, aerobic tanks, or biological treatment systems. To reduce construction costs by 2 to 3 times, businesses should use composite tanks. Increase the density and culture of microorganisms in the treatment tank.
Upgrade the system to match actual wastewater treatment capacity.

1.4 High System Operation Costs

Operation costs are often driven by machinery and equipment, so it is essential to check whether the system's power input has increased over time. Therefore, businesses should conduct inspections and maintenance to identify the cause and take measures to reduce construction costs, such as using composite tanks if additional tanks are needed or adopting new technology to upgrade the wastewater treatment system.
Inspect the chemical pump system for blockages or damage during operation. Additionally, businesses can save on construction costs by using tanks like composite tanks, which have a lifespan of up to 50 years and can be relocated if the company moves, unlike fixed tanks, which must be entirely discarded if the business relocates.

1.5 Sludge Death Phenomenon

The sludge death phenomenon often occurs during the wastewater treatment system upgrade due to various causes, but the four main ones are:

Sludge floating in the settling tank: In polluted water with favorable conditions for microorganisms, such as nutrients, pH, and DO, thick sludge forms and, when overloaded, rises to the surface of the settling tank.
Sludge floating due to toxins in the water: Wastewater containing toxins from daily chemical use can kill microorganisms during treatment, causing the sludge to float instead of settling.
Sludge floating during nitrate removal: During nitrate removal, bubbles often rise and burst, causing the sludge to float.
Sludge floating in the settling tank due to strong growth of filamentous bacteria: These bacteria attach to solids in the water, increasing the surface area, preventing the solids from settling and causing them to float.

2. Upgrading the Wastewater Treatment System with Jokaso Technology

The Jokaso technology wastewater treatment system upgrade process is implemented using an on-site treatment approach—without septic tanks—through a three-compartment system:

2.1 Compartment 1 - Anaerobic Compartment

This compartment functions for both anaerobic and anoxic treatment—water is recirculated from the settling compartment with air pressure, carrying oxygen. In this compartment, water flows through fixed biofilm media containing heterotrophic biomass, then settles to the bottom of Compartment 1.

2.2 Compartment 2 - Aerobic Compartment

From the bottom of Compartment 1, water flows through a passage to Compartment 2. This compartment has an aeration system at the bottom and contains suspended biofilm media (MBBR). In Compartment 2, water flows from the bottom to the surface and then overflows into Compartment 3 through a passage.

2.3 Compartment 3

This compartment mainly contains insoluble residues such as PO4³⁻, NO3⁻ salts, which settle here. Microorganisms carried by the water also settle in this compartment. The settling compartment has a recirculation system using air pressure. Treated water and settled sludge are pumped back to Compartment 1 to continue nitrate removal, releasing free nitrogen into the air, preventing odor during operation.
The settling compartment is designed with a chlorine tablet mixing system for disinfection. The water discharged into the general drainage system meets QCVN 14:2008/BTNMT standards. The nutrients in the wastewater are mainly carbon, nitrogen, and phosphorus as macronutrients, along with micronutrients like Mg, Fe, and Mn
The best nutrient ratio for the growth and development of microorganisms is C:N:P = 100:5:1. Therefore, preventing wastewater from passing through a three-compartment septic tank to retain organic matter for microorganisms is essential.

3. Advantages of On-Site Wastewater Treatment Technology—No Septic Tanks

Using on-site wastewater treatment technology—without septic tanks—in system upgrades offers the following advantages:

Space-saving construction: No need for a three-compartment septic tank, equalization tank, disinfection tank, or sludge storage tank, reducing construction time.
Chemical-free technology: Utilizing biofilm technology instead of chemicals.
Reduced equipment usage: Fewer devices like submersible pumps, dosing pumps, stirrer motors, and sludge pumps are needed.
Odorless operation: The system does not release unpleasant odors into the surrounding environment.
Easy capacity expansion: To increase capacity, no additional system construction is required—just increase the MBBR suspended media to expand the treatment volume.
Lower operational costs: The system operates almost automatically, reducing labor costs compared to traditional technologies.
Compact system: Suitable for small areas, can be installed underground in parking areas, entrances, basements, etc.
Less sludge: Produces 30% less sludge than traditional technology, saving on sludge transport and treatment costs.

When you choose Dai Nam Environmental Co., Ltd., you will receive the most useful advice for upgrading your domestic wastewater treatment system to suit the needs of each household. With a team of over 10 years of experience in the field, we are always ready to support customers 24/7 through the hotline: 0909 378 796.