Residents who live in yongningzhen, Pukou District, Nanjing, reported that in recent days, as the weather became hotter and hotter, a small river ditch in Tuanjie Community constantly gave off a bad smell. Residents said that they used to wash rice and vegetables in this small river ditch. As several small processing plants settled in their community, the wastewater generated was directly discharged into Ogawa-CHO without any treatment, which polluted the environment.
Sewage is directly discharged into the river ditch near the factory building.
Under the guidance of Mr. Liu, a resident, the reporter searched all the way up the river. After walking about 500 meters, he saw the polluting enterprises mentioned by Teacher Liu. The factories of these enterprises are linked together for several kilometers. Behind the factories of these enterprises, we can see a drainage ditch connected with the river. Every 50 meters, there will be a drainage pipe sticking out of the factory to continuously discharge sewage from the factory.
Subsequently, the reporter went into two factories to check, and saw in a plastic granule factory that a large number of processed plastic granules were piled up in the whole factory. A worker at the scene was washing the machine with water, and these black wastewater was directly discharged into the drainage ditch behind the house through a water pipe in the factory. The owner of the plastic granule factory said that he had been working for more than half a year. It's always drained like this. In another plastic products factory, workers are polishing the newly produced spoon, and the dust generated by polishing is directly discharged outside the factory through two huge exhaust fans without any treatment. The person in charge of this enterprise said that they were all attracted by the local community, the factories were provided by the community, and the rent was also paid by them.
After receiving the environmental problems reflected by residents, the staff of Pukou District Environmental Protection Bureau and yongningzhen rushed to the scene to take photos and collect evidence. Law enforcement officials said that at present, according to the inspection situation, all sewage outlets are required to be closed, and enterprises will immediately stop discharging pollutants. The next step will be to concentrate on pipeline discharge. Law enforcement officers also found that there were no heavy metal polluting enterprises in this factory, but only some processing enterprises. Law enforcement officers also sampled the polluted river water and brought it back for further testing. For the polluted river and ditch sewage, the government departments in the jurisdiction also indicated that they would thoroughly clean it up.
Introduction of waste plastic sludge treatment equipment;
LWJ settling centrifuge (solid-liquid separator);
1, compact structure, small volume, light weight, and relatively convenient to move under the same processing capacity;
2, large capacity, good separation performance and wide application range;
3, the solid recovery rate is high, the running cost is low, and filter cloth is not needed;
4, automatic continuous operation, simple operation and use, convenient installation and maintenance, etc. It has been widely used in many industrial and mining fields, such as geology, petroleum, chemical industry, metallurgy, pharmacy, environmental protection and so on.
Performance characteristics of sludge treatment equipment for cleaning waste plastic bags;
The main components are made of high-quality carbon steel or stainless steel. The push rod adopts special wear-resistant measures, and can be inlaid with cemented carbide wear-resistant tiles or hardfaced with cemented carbide protective layers. Adopt cycloidal pin-wheel differential, with low noise and strong bearing capacity.
1. The single machine has a compact structure, covers an area of 2-3 square meters and runs smoothly. It can be unloaded automatically and run continuously. Workers only need to operate the power cabinet, which is clean and hygienic.
2. Wide adaptability to materials, and wide particle size range of separable solid phase (0.005~2mm). When the solid particles are not uniform in size, they can be separated as usual. The dosing situation depends on the material, and generally no dosing is needed, which saves the cost.
3. According to the materials selected by the industry, 304, 365 and 438+06 stainless steel can be selected for centrifuges, and explosion-proof motors can be used in special industries.
4. The equipment occupies small space and is convenient for transportation and hoisting. Sometimes, in order to save the space occupied by machines and tools and realize the concentration of mud preparation and purification process, the equipment can also be placed on the container mud pool, but it must provide solid bottom support for the equipment and reliable safety protection facilities for operators. In the aspect of building piling mud treatment, mud purification equipment consists of mud feeding system, dosing system, desanding purification system, mud separator, slag discharge system, mud recovery tank and mud mixing tank.
Summarize the advantages of cleaning sludge treatment equipment with waste plastic bags;
Large capacity, long wear life, reasonable structure, low noise, small floor space, wide application range, simple operation, convenient maintenance, high degree of automation, stable operation, low equipment cost and low capital construction cost.