Floating floc removal in industrial wastewater treatment

1. Clearwater Management Korea OCTOBER 27 Clearwater Management Korea 1

2. Floating floc removal in industrial wastewater treatment Occasionally, the floc that develops during the operation of an industrial wastewater treatment system will float. Floating floc might be difficult to get rid of, as you are aware if your treatment system contains any. Your wastewater's pollutants are really included in the floc, therefore if it isn't removed before being released, you could not be in compliance with the terms of your disposal licence. Floating floc can be caused by a variety of factors. The sources of some of the most frequent problems are listed below, along with some troubleshooting advice you may use to figure out what might be creating floating floc in your system clearwater management korea. A surplus of water flow Floc does not have time to settle in the clarifier as it should when the water flow rate is at or close to the maximum flow rate that your clarifier was intended to handle. This could make the floc float. If the flow rate was recently raised, try lowering it to see if the floc settles. If the flow rate has not recently been raised, you should look into alternative explanations. Added oxidants to the waste stream 2

3. Floc can float as a result of oxidants like hydrogen peroxide (H2O2). If you want to know whether an oxidant is the root of the floating floc, you may do a jar test. The floc should be at the top of the beaker rather than the bottom when you do this. Sometimes it might take up to 15 or 30 minutes for floc to begin to float. If it is determined that oxidants are what are making the floc float, you can add a reducing agent like bisulfate or a special metal precipitant to your waste stream. The optimum way to incorporate reducing agents into your waste treatment programme should be discussed with your provider of wastewater treatment services. Large, excessively bright floc Sometimes during therapy, floc might get overly fluffy and light. There are various solutions available to fix this. Altering the polymer's dosage, switching to a more suitable polymer, or employing a stronger coagulant are all options. Simple dosage rate adjustments can change the polymer dosing strategy. Additionally, you may alter the concentrations of polymers being utilised. Try using 0.15% by volume instead of 0.3% by volume if you're using a dry polymer or emulsion as an example. Additionally, you might want to think about shifting where the polymer is dosed throughout the water treatment process. Dosing in the final reaction tank in addition to the clarifier can occasionally stop floating floc. 3

4. overuse of polymers A floating floc that won't settle can also result from the overdose of polymer. Your polymer is being overdosed if your floc is very light and tiny (often referred to as pin-floc). To establish the ideal polymer dosage for your wastewater, you can perform a jar test. Outgassing of living things Anaerobic bacteria emit oxygen as they expand via outgassing. Even when the system isn't functioning, this causes floc (or silt) to float in big pieces and bubbles to rise to the surface of the water. Biological outgassing is probably at blame if you notice bubbles and bigger pieces of floc clearwater management korea. You should use an air sparger to clean the clarifier before treating it with a biocide in order to solve this issue. The biocide will stop the growth of the bacteria. It is always a good idea to speak with your wastewater treatment services provider before attempting to fix floating floc in your wastewater treatment system on your own. They can assist you in solving the issue fast so you don't violate discharge permit compliance. 4

5. 5