A. SUPERMARKET WASTEWATER?

1. Composition of Wastewater:

- Supermarket wastewater contains a lot of easily biodegradable organic matter, as well as inorganic components, microorganisms, and pathogenic bacteria. Organic substances in domestic wastewater account for about 50–60% of the total substances, including animal and plant organic matter. However, the wastewater flow rate is determined by the number of employees, customers, food stalls, and the size of the supermarket.

- Table of supermarket wastewater composition.

We can see that:

- The levels of oil, grease, and total suspended solids (TSS) are quite high; we can use an oil and grease separator tank or flotation tank for treatment.

- For Coliform treatment: use sedimentation combined with disinfection.

- For BOD and COD treatment: aerobic tank.

- For N:P treatment: use an anoxic tank

 

2. Sources of Wastewater Generation

- Fresh food areas: Fresh fish, meat, seafood, etc., are cleaned by employees for packaging or processing.

- Cooked food processing areas: This area has many specialized sinks for employees to use. Wastewater from this area will contain a large amount of oil and grease, along with solid waste, etc.

- Wastewater from daily activities and hygiene practices of employees and customers in the supermarket..

B. WHAT IS AO TECHNOLOGY?

AO technology is an advanced technology currently used mainly for domestic wastewater treatment. It ensures the quality of treated wastewater, saves space and construction costs, and is more economical to operate.

Aerobic Tank: In this tank, BOD is removed, and ammonia is converted to nitrate.

The Nitrification process occurs here, where ammonia (NH3, NH4+ ) is converted into nitrite (NO2) and then into nitrate (NO3), performed by two groups of bacteria Nitrosomonas và Nitrobacter:

* Nitrosomonas bacteria: convert Ammonia to Nitrite. The nitritation stage forms NO2-

NH4+ + 3/2 O2 → NO2- + H2O + 2H+ + energy

* Vi khuẩn Nitrobacter: convert Nitrite thành Nitrate. The nitratation stage forms NO3-

NO2- + ½ O2 →  NO3- + energy

The BOD content in wastewater is treated with the participation of aerobic microorganisms. The BOD removal efficiency can reach 85-90%.

• Organic matter + aerobic microorganism + O2 → CO2 + H2O + new biomass
•  

Anoxic Tank: This tank is responsible for denitrifying nitrate into nitrogen. Anoxic microorganisms absorb nutrients and convert nitrate into free nitrogen. The combination of wastewater and the recirculation stream makes the denitrification process more effective. The conversion to N2 occurs as follows:

- Step 1: Convert nitrate to nitrite:     6 + 2CH3OH → 6 + 2CO2 + 4H2O

- Step 2: Convert nitrite to N2:     6 + 3CH3OH → 3N2 + 3CO2 + 3H2O + 6OH- + 3O2          

 

C. INTRODUCTION TO MICROBIOLOGICAL PRODUCTS

Bioclean ACF Nitro Activator

Highlights:

Contains two specific strains of microorganisms for nitrification:

• Nitrosomonas sp (convert Ammonia to Nitrite).
• Nitrobacter sp (continue convert Nitrite to Nitrate.

Contains bacteria such as Bacillus Lichenniforms, Bacillus Amyloliquifaciens, Bacillus Subtilis, and nitrifying bacteria Nitrobacter winogradskyi, Nitropseudomonas europaea, with ten times the density of the old formula.

 

Benefits of Use:

- Reduces ammonia and total nitrogen in the wastewater treatment system, enhances nitrification, and lowers total nitrogen levels.

- Reduces ammonia odor in the system.

- Mitigates the impact of microbial death due to high nitrogen load shock.

 

Bio M1

Highlights:

- Microorganisms for treating BOD, COD, and TSS with the latest improved liquid formula in 2020.

- Made in the USA by Sun & Earth Microbiology.

- Stable performance since 1974.

 

Benefits of Use:

- Reduces COD, BOD, and suspended solids (SS) indices.

- duces sludge volume and hard-to-degrade compounds.

- Balances the effective bacterial community in activated sludge.

- Reduces and controls odors throughout the system.

- Maintains the treatment performance of the wastewater treatment system.

***** Using BIO M1 in combination with Bioclean ACF-Nitro Activator is the optimal, cost-effective, and efficient solution for converting nitrogen from NH4+ to molecular nitrogen. It treats BOD, COD, and TSS, mitigates the impact of microbial death due to load shock, and ensures treated water meets the wastewater standards QCVN 14:2008/BTNMT.

 

D. PRODUCT USAGE INSTRUCTIONS

Suitable conditions for microbial activity

Dilution Ratio and Usage:

- The manufacturer recommends using an aerated microbial storage tank for 12-14 hours before introducing it into the system.

- Depending on the characteristics of each system, the composition and properties of the wastewater to determine the appropriate dosage. Please contact technical support for free consultation.

 

Where to Buy Genuine BIOCLEAN Microbial Products:

- Currently, the Vietnamese market has a wide variety of microbial preparations. Bioclean products are proudly distributed exclusively by BIOTECH VIETNAM and are trade partners with many famous microbial brands worldwide, such as Sun & Earth Microbiology in the USA and Shakti Biotech in India.

- These microbial products are trusted by many wastewater treatment operators. Genuine products are 100% imported from the USA, and Biotech Vietnam always provides the highest quality microbial products.

- BIOTECH VIETNAM  also offers a variety of specialized products for treating wastewater parameters: BOD, COD, nitrogen, ammonia, sludge, odor, organic oil and grease, septic tanks, and sewer pits,...

 

In addition to the environmental sector, Biotech Vietnam also provides a range of products for aquaculture and agriculture. For more information, please visit the website: http://biotechvietnam.org/.

 

BIOTECH VIETNAM

11/11A Nguyen Van Mai Street, Ward 4, Tan Binh District, HCMC

Hotline: 0914.811.441