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Company profile

Baoding poly ruihe sewage purification co., LTD., with a registered capital of 30 million yuan and a fixed asset of over 100 million yuan, is located in the industrial zone of pang cun town, mancheng district, baoding city. It is the largest sodium acetate manufacturer in the north, producing 300,000 tons of liquid sodium acetate and 30,000 tons of solid sodium acetate. All national standard genuine, stable production, timely supply. In addition, the company also undertakes all kinds of difficult seepage pit treatment, with large sewage pit treatment experience and successful cases.

Main achievements:

1. Subsidiaries of Beijing drainage group: Beijing gaobeidian sewage treatment plant, qinghe sewage treatment plant, xiaohongmen sewage treatment plant and dingfuzhuang sewage treatment plant;

2. Under tianjin chuangye environmental protection group: jingu sewage treatment plant, dongjiao sewage treatment plant, xianyang road sewage treatment plant and beicang sewage treatment plant.

3. Tianjin gezhouba water, tianjin teda water, huabo water, tianjin dagang oil, etc.

Products and services

1. Liquid sodium acetate
main indicators:
Content: content greater than or equal to 20%, 25%, 30% appearance: clear and transparent liquid.
Senses: no pungent odors. Insoluble substance in water: less than 0.006%

 Main applications:
The effects of mud age (SRT) and carbon source (sodium acetate solution) on nitrogen and phosphorus removal were studied. Sodium acetate was used as a carbon source to tame denitrification sludge, and then the increase of pH value during denitrification was controlled within 0.5 range by buffer solution. The denitrifying bacteria can adsorb CH3COONa in excess, so the COD of the effluent can be maintained at a low level when denitrifying with CH3COONa as the additional carbon source. At present, all urban and county sewage treatment needs to add sodium acetate as carbon source to meet the emission standard.

Delivery standard:
When the dosage of sodium acetate is 15mg/L, the export concentration of all parameters of the system can reach the "urban sewage treatment plant pollutant discharge standard" gb18918-2002 level A. When the adding amount was 30mg/L, the P release rate in anaerobic segment, P absorption rate in aerobic segment and nitrogen removal rate in hypoxia segment were the largest, reaching 3.54 mgpo43-p /(g MLSS·h) 2.54 mgPO43--P/(g MLSS·h). And 1.53 mgNOx - N/(gMLSS h.). When the addition amount of sodium acetate was 9mg/L and 15mg/L, denitrification and dephosphorization occurred in the hypoxia segment, and the phosphorus uptake rate in the hypoxia segment was 0.36mgPO43--P/(g MLSS·h) and 0.02(mgPO43--P/(gMLSS·h), respectively. In summary, the optimal dosage of sodium acetate is 30mg/L, and the system will be more stable and reliable.

2. Solid sodium acetate trihydrate
 ①Main indicators:
Appearance: colorless or white transparent crystal.
Melting point: 58 ° C. Solubility in water: 762 g/L (20 ° C)

Main applications:
It is widely used in printing and dyeing, medicine, chemical preparation, industrial catalyst, auxiliary agent, additive and preservative fresh-keeping agent.

3. Sodium acetate without water
Main indicators:
Appearance: colorless, odorless, transparent crystal.
Melting point: > 300 ° C. Solubility in water: 500 g/L (20 ° C)

Main applications:
Organic synthesis esterification agent, medicine, printing and dyeing agent, buffer agent, chemical reagent.

4. Pit management
Pit drainage and hazards:

A soakaway pit, also called a soakaway pit, is a soakaway pit where a small amount of rain or sewage is removed. Pit walls are stacked or stacked with stones, the bottom is covered with gravel, the top of the pit is covered, and nets are decorated at the sewage inlet to catch larger solid impurities. Water in the pit seeps into the soil through the bottom and wall of the pit and is suitable for places with low water table.

The water from the well that we drink is from the water in the aquifer. According to the location and flow of the stratum, the groundwater can be divided into shallow groundwater and deep groundwater. Shallow ground water refers to the underground water that lurks above the first impermeable layer on the surface, generally between a few meters and a dozen meters. Deep groundwater refers to the water hidden in the aquifer below the first impermeable layer, below 30 meters from the ground, some hundreds meters from the ground. Rural areas in northern China drink more shallow groundwater, and urban water source snow from deep groundwater.

The discharge of untreated industrial wastewater and domestic sewage by seepage pit can cause pollution of groundwater. In places where there is no clay-covered layer or very thin overburden, when effluent is discharged by seepage pit, the pollutants in the effluent can enter the aquifer through osmosis, and when the drain well is deep, different isolated aquifers can be colluded to cause a wider range of pollution.

Pit management method:
Physical methods: filtration, adsorption and air flotation.
Chemical methods: neutralization, precipitation, advanced oxidation and extraction.
Biological method: activated sludge method, biofilm method, anaerobic biological treatment method.

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