Biodegradable flocculants: Power of `natto`

- By:

Courtesy of Axessa

Just by adding and stirring (1 agent, 1 process) 'PG alpha 21Ca' to polluted water, it separates supernatant water with better turbidity, BOD, and COD, and sediments in a short time. This high-molecular flocculent adsorbs strongly the exogenous incretion disturbance substance (Environmental hormone ), like dioxin.

By using this high-molecular flocculent, it is possible to draw and collect easily floc (flocculated contaminants) with magnetism. As a result, the process of filtration becomes unnecessary. The process of filtration occupies the large portion of cost of the water treatment. Also it is possible to use combining with the existing flocculent.

Compare to the traditional processing system with PAC or polymer coagulant, it enables simple and secure process by just installing volumetric powder feeder.

What is Polyglutamic Acid (PGA)?
Principal component of Natto’s gooey Nylon-structure-like polymer.

Because of its safeness, it is used for medicine’s capsule, food, cosmetic product, and medicinal product.

Not only Natto but also Natto bacillus is used to get polyglutamic acid, and since it uses very difficult technology to take it out, the product results in high cost.


- 100% natural formula

- Passed 'Kill Fish' test

- Passed 'Reverse Mutation' test on bacteria

- You can add directly into river/lake, no harm to fish/animals

- Fast formation of flocs and their fast precipitation.

- Can be used for a wide range of pH (4-12) of water.

- Small changes in pH compared to other methods.

- It is very safe since its ingredients are natural.

- Can effectively remove heavy metals in water.

- Can reduce cost of sludge treatment since proportion of water in flocs is quite low.

- Can be used together with other flocculants, such as PAC.

Natural mineral = Calcium sulfate
Calcium carbonate
Sodium carbonate
Aluminum sulfate

Cross-linked PGA = Polyglutamic Acid


Please contact us for further detailed information, white paper, etc.

Customer comments

  1. By Prasanth N.P on

    interesting article do you have more case study for PGalpha21Ca for waste water treatment