Market analysis of sewage treatment equipment, the proportion of sewage treatment equipment in the t

Sewage treatment equipment can be roughly divided into sewage pretreatment equipment and sludge treatment equipment. The sewage pretreatment equipment mainly includes sewage blocking equipment, sand sinking equipment, sand discharge equipment, sedimentation equipment, and air flotation equipment. It mainly includes blast aeration equipment, decanter, biofilm wastewater treatment equipment, anaerobic wastewater treatment equipment, and typical auxiliary equipment for anaerobic anoxic treatment.

Sludge treatment equipment mainly includes sludge discharge equipment, sludge thickening equipment, sludge anaerobic digestion equipment, sludge dewatering and drying equipment. Among the many equipment, there are also fluid transfer machinery and equipment, such as pumps, valves, fans, compressors, etc.

With the deepening of China's industrialization and urbanization, China's investment in the field of wastewater treatment will continue to grow, but the growth rate of investment will show a downward trend in the short term. In 2010, the total investment in China's sewage treatment industry was 86 billion yuan, a year-on-year increase of 26%, and the growth rate of investment slowed down compared with 2009. In 2011, the growth rate of investment in the sewage treatment industry continued to decline to about 15%.

It is expected that by 2013, the growth rate of industry investment can recover to about 18%.

Compared with the field of industrial sewage treatment, domestic sewage treatment is the first investment field, and the investment rigidity is strong, so a certain demand for domestic sewage equipment can be maintained in 2011 and 2012. In the face of a weak economy, most companies may postpone their plans to modernize their wastewater systems. As a result, demand for industrial wastewater treatment equipment will decline in 2012 and is expected to recover between 2013 and 2015.

Centrifuges and sludge dewatering machines are both a kind of Jinyuyuan sewage treatment equipment. In the process of use, the centrifuge can separate the liquid and particles of suspended solids in the sewage, so that there will be no miscible between the liquids. The biggest feature of the sludge dewatering machine is that it can be controlled by itself, and there is no need for speed regulation at the level, which is also very suitable for continuous production in the working mode.

Hello dear, the sewage project includes sewage interception pipe network project and sewage treatment plant project. In general, the sewage interception network accounts for 70% of the total investment, and the sewage treatment plant accounts for 30%. The investment in the sewage treatment plant is generally 1200 1400 tons (excluding land requisition, demolition), sewage treatment equipment depends on whether you use domestic equipment or imported equipment, if the key equipment is imported, about 25% 30% of the total investment in the sewage treatment plant.

The color of water is only a part of the testing of domestic sewage treatment equipment, and different projects and industries have different sewage treatment requirements and discharge standards. Generally speaking, several common indicators of domestic sewage treatment include: COD, BOD, ammonia nitrogen, total phosphorus, total nitrogen, suspended solids, etc.

Our common kitchen, bathroom, bath, and laundry wastewater will contain the above substances. Therefore, before the construction of each domestic sewage treatment project, the corresponding discharge standards will be selected for the above indicators. Sewage treatment is based on different physical, chemical, and biological reactions to reduce or remove the above-mentioned index substances.

1. Sludge dewatering machine. The sludge dewatering machine is characterized by automatic control operation, continuous production, stepless speed regulation, suitable for a variety of sludge dewatering, suitable for sludge dewatering in water supply and drainage, papermaking, casting, leather, textile, chemical, food and other industries.

2. Aerator. The aerator is through the air dissipation impeller, the "micro bubbles" are directly injected into the untreated sewage, under the joint action of coagulant and flocculant, the suspended solids undergo physical flocculation and chemical flocculation, so as to form a large suspended solids floc, and the "flocs" float on the liquid surface to form scum under the buoyancy of the bubble group, and the slag scraper is used to separate the sharp socks from the water; There is no need to clean the nozzle and no clogging occurs. The equipment has good integrity, easy installation, saving operating costs and occupying the ground.

3. Microfilter. The microfilter is a rotary drum screen filtration device. The treated wastewater enters the drum in the axial direction and flows out through the screen in a radial radial pattern, and the impurities in the water (fine suspended solids, fibers, pulp, etc.) are trapped on the inner surface of the filter screen on the drum.

When the impurities trapped on the filter screen are brought to the upper part by the drum, they are backwashed into the slag discharge tank by the pressure flushing water and flowed out. When running, the diameter part of the rotating drum 2 5 is exposed to the water surface, the number of revolutions is 1-4r min, and the filter screen filtration speed can adopt 30-120m base virtual h, flushing water pressure, and the flushing water volume is the production water volume, when used for reservoir water treatment, the algae removal efficiency reaches 40-70%, and the plankton removal efficiency reaches 97-100%. The microfilter occupies a small area, has a large production capacity (250-36000m3 d), and is convenient to operate and manage, and has been successfully applied to water supply and wastewater treatment.