An effective way to prevent the impact of toxic wastewater on the biochemical system is to properly maintain high sludge concentration. As the teacher said, more people have more strength, so the larger the body, the stronger the impact resistance. Higher sludge concentration can increase the number of nitrifying bacteria in the system, which can increase more buffer time for the nitrification system when the toxic substances in the system influent impact. Some studies show that 10ppm quaternary ammonium salt has little effect on the ammonia nitrogen removal capacity of the system with a sludge concentration of 3500 mg/L, but at a sludge concentration of 2000 mg/L, the ammonia nitrogen removal capacity decreases significantly. Therefore, increasing the sludge concentration of the sewage plant is also an effective way to prevent the organic load, toxic substances and ammonia nitrogen load in the influent from impacting the biochemical system. However, there are two sides to everything. Increasing the sludge concentration will cause the tension of dissolved oxygen in the system under the same air volume, so it is necessary to increase the aeration volume, which will lead to the increase of power consumption of the sewage plant. I suggest that if industrial sewage enters your sewage plant, the biochemical system will often face the impact of organic load, toxic substances, ammonia nitrogen load, and the sludge concentration in the system needs to be increased. Maintain a high concentration biochemical system by reducing sludge removal and increasing carbon source input (sludge load must be calculated and maintained within the normal range). If the influent water of your sewage plant is stable all the time without the above conditions, the sludge concentration of the system can be kept within the normal range according to the organic load and ammonia nitrogen load of the influent water
Scope of application
Industrial glucose has obvious effect on the purification of drinking water and various industrial water. Domestic drinking water, industrial water, domestic water, domestic sewage and industrial sewage treatment, etc.
Carefully observe the integrity, speed, clearance water, flocculating state, etc. in the settlement process.
Glucose (culture industrial glucose) is also called whole sugar powder. White block solid, sweet. Solids ≥ 80%, DE ≥ 95, products are widely used in sewage treatment, medicine, chemical industry, food, microbial fermentation and other industries, Executive standard gb/t20880-2018
Activated sludge is also a kind of life, so for the cultivation of activated sludge, the addition of nutrients should also consider the supplement and balance of nitrogen and phosphorus elements. The main purpose of adding nutrients (nitrogen and phosphorus) is to provide nutritional support for activated sludge and its normal growth and reproduction. If the nutrient is not enough, it will lead to many problems in activated sludge. For example, if people only eat carbon containing food, it will cause malnutrition and affect development and reproduction, and the population will certainly not rise. The same is true for activated sludge, which only eats carbon but not nitrogen and phosphorus. The sludge activity is poor and the sludge volume will not increase. However, during actual dosing, it should be added in proportion, not more. If it is excessive, it will lead to excessive nitrogen and phosphorus in the effluent.
Glucose (culture industrial glucose) is also called whole sugar powder. White block solid, sweet. Solids ≥ 80%, DE ≥ 95, products are widely used in sewage treatment, medicine, chemical industry, food, microbial fermentation and other industries, Executive standard gb/t20880-2018
The COD value is measured according to the national standard method, and the detection upper limit for measuring the high concentration COD value is 700mg/L, so the carbon source to be measured needs to be diluted below this upper limit according to the limit. For example, if the carbon source equivalent is 500000 mgCOD/kg, it needs to be diluted 1000 times, and the solution COD value after dilution is about 500 mg/L. Because the liquid carbon source has a density value. Therefore, when sampling, a beaker can be used to weigh about 1g of liquid carbon source (instead of 1ml of liquid carbon source) with an analytical balance, and record the weight m (such as 1.0280g); Then dilute the carbon source with water and transfer it to a 1000ml volumetric flask, dilute it to the scale line, and shake it well. Then take 10ml of the prepared solution to measure the COD value according to the method of HJ 828-2017. Or in order to greatly reduce the result error, a pipette can be used to absorb 10g of carbon source, dilute it with water and transfer it to a 100ml volumetric flask for constant volume, and then transfer 1ml of the liquid in the volumetric flask to another volumetric flask for constant volume. Then take 10ml of the prepared solution to measure the COD value according to the method of HJ 828-2017.
