AQUACLEAN/ ACF-32

 

Treatment of Pulp and Paper Mill Wastes

 

 

Bio-Augmentation with AquaClean has been shown to have broad general benefits in improving the performance of wastewater treatment plants in a variety of industries.

 

In the treatment of Pulp & Paper Wastes the general benefits are:

 

1. Improved overall BOD/COD reduction.

2. Improved solids settling.

3. Improved sludge and cellulose degradation.

4. Improved odor control, especially sulfur based odors common to pulp & paper wastes and sulfite process mills.

5. Improved stability, and more rapid re-start from maintenance shut downs.

 

Treatment uses ACF-32 in standard dosage per flow and volume rates, but may be enhanced with our product PP…specifically addresses the issue of cellulose waste…

 

Answers to the Common Pulp & Paper Plant questions…

 

1. Clarification on Initial Trials and Long-Term Treatments

 

a. Is the treatment program applicable only for the initial trial and recovery projects or also for continuous usage of ACF-32, once the system has reached a steady-state or

 

The maintenance dosage would be for continuous use after the trial phase. The maintenance dosage be used on a continuous basis, and therefore will not have to use the higher inoculation dosage unless there is an upset in the plant or shut down the operation for maintenance, which most mills typically do two times per year for one to two weeks.

 

b. Is ACF-32 working only for Odor Control or also for COD and BOD improvement?

Is the program made for both of them?

 

The ACF-32 program will address Odor Control, COD and BOD improvement and will provide some improved solids settling and sludge reduction as well.

 

2. Technical Affection of AquaClean products, as more fully explained in the MSDS.

 

a. Any affection on the dominant microbe species already living in the aerations?

 

No, there is no antagonism. The product will only augment the existing population. There may be some redistribution for maximum efficiency but there will be no adverse effects on the existing populations.

 

b. After a discontinuation of AquaClean, is there any possibilities of collision between newly born dominant microbe and other microbes to be born in the future?

 

This has never been observed in 30 years, and there is not even a theoretical reason for this to occur unless antibiotic compounds are produced.

 

c. Any possibilities that the ACF-32 microbes could grow to become "slime" (with very strong propagative power), as waste water is daily reused in the paper production process.

 

It is more likely that the organisms in ACF-32 would out compete slime mold and Beggiatoa, two of the more common slime agents in Pulp & Paper mills, and help to control these populations. It will also help to control the H2S which can promote the Beggiatoa growth.

 

3. Input Method

 

a. Exact point (place) of input

 

Slug dosing at the basin as close to the influent pipe as possible or in any kind of pump or line access immediately upstream of the basin to which the product is being added.

 

b. Is the given quantity of the product to be thrown all at once or to be pumped constantly during certain hours?

 

Due to the normal residence time in the system, it can be added at once. This is what is meant by slug dosing.

 

4. Is there any particular monitoring method of the effectiveness required, depending on the treatment process and major key points of observation?

 

Normal monitoring parameters - influent and effluent BOD, COD, Suspended Solids, MLSS levels, RAS concentration, WAS concentration and quantity, H2S levels, if taken, will do the job. The odors can be monitored qualitatively as well.

 

5. Sensitivity of the product on the temperature, especially if running high?

 

The product will be adversely affected by temperatures over 125 degrees F. (52 degrees C.). It should not be used if the temperature will be over 140 degrees C. (60 degrees C.) Most Pulp & Paper wastes tend to be hot, but the wastewater basins generally do not exceed 90 degrees F (32 degrees C). Must remember that there will be more exothermic energy from the bacteria since the F/M ratios are higher.

 

6. Any particular requirement for storage of the product?

 

Just should not be stored at temperatures above 125 degrees F. (52 degrees C.). While freezing does not have that much effect on the product, it is better if it does not freeze.

 

7. Any lifecycle of the product considering the environment of the usage?

 

Properly stored, the shelf-life is well over two years. If the question is the lifecycle in the system, the microbes will thrive and multiple based on available food source. The microbes are self-selected by the environment, and the generational growth is by cell division of identical sister cells.

 

8. Any direct experience of use in paper mill?

 

The product has been used by International Paper on several occasions with very good results. Several other large Pulp & Paper mills have also used the product successfully.