lowcost sand washing waste water treatment system

Low-cost sand washing production wastewater and sludge treatment project overview:

The sand washing wastewater is 300m3 / d and the sludge is 30m3 / d.

The main production of construction water washing sand primary products.

A water-washing sand production line with a daily production capacity of 150 tons will crush, screen, and wash nearby sandstone, silica, etc. to produce construction water-washing sand products.

The main environmental pollution problem in the production process of the project is the sludge wastewater and domestic sewage generated by washing sandstone and silica rock. According to the requirements of relevant laws and regulations, sand and stone washing wastewater and domestic sewage must be discharged or recycled after treatment, and the washing sludge should be properly disposed of. The tailings can be exported as good paving gravel.

Total wastewater: about 300 m3 / d of washing production wastewater. The main pollutants are characterized by a large amount of soil and silt in sandstone and silica. After crushing and washing with water, soil and fine sand are contained in the water. The content of suspended matter and colloid is high, and the color is high. The surrounding environment causes pollution. The washing wastewater undergoes the initial sedimentation, coagulation sedimentation, and then is used as sand field washing water for recycling or discharged up to standard. The sedimented sludge is pressed and dewatered by a filter press and then landfilled. The wastewater is recycled after sedimentation treatment. The recycling rate is designed according to 90%, and the evaporation and water loss are supplemented according to 10%. The domestic sewage is treated by septic tanks and used as water for plant greening and nearby agricultural land.

Comments

Slove method of the clogging of trommel screen sieve

The drum screen is a simple screening device. The trommel screen is easy to close and collect dust, the maintenance is small, the maintenance is simple, and the service life is long. It is a device frequently used in refractory materials, coal, river sand classification, and sandstone classification. The advantage of the trommel screen is that the structure is not complicated so that the device can be quickly operated, and when the trommel has problems, people can easily solve it. But what should I do when the screen of the trommel screen is blocked? The following screen will introduce several ways to solve the phenomenon of blocking the net. The trommel screen sometimes adopts a mechanism added to the fixed frame, and then the mechanism rotates to drive the belt mounted on the belt to continuously smear the surface of the sieve hole, thereby sucking out the raw material particles blocked in the sieve hole. One of the disadvantages in practice is that it produces a lot ...

How to desilting municipal drains and canals?

The river channel sludge filter press is a special equipment, which is used to deal with river channel dredging sludge, lake sludge and sludge brought ashore by cutter suction boats. The equipment adopts the principle of automatic water removal and extrusion dehydration. First, the sludge is introduced into the equipment through a slurry pump, and after pressing and squeezing, the output is clear water and mud cake. This treatment method does not require manual unloading, and the moisture in the mud cake is effectively removed, which can be directly packaged and transported, and the clean water produced can be directly discharged. Automatic processing: The equipment adopts an automatic control system to realize automatic water removal and extrusion dehydration without manual operation, which greatly saves labor costs and time.

The significance of high pressure large ball press machine

information about ball press machine Ball press machine is a key suppressing machine in the pellet technology complete equipment developed and designed on the principle of extrusion molding for powder material. Our company received the national patent of invention certificate of large ball press machine with patent No. ZL2007.1.0163951.4. Recently, the first GY2412 ball press machine has been successfully manufactured in our factory with diameter of press roll 2.4 meter and width 1.2 meter. The capacity of the machine can reach 50-100t/h according to different material. Our product is the largest high-pressure ball press machine of highest pressure and largest capacity featuring in advanced product design theory, rational structure, affordable forcing feeding, adjustable pressure, feeding intellectualization, ball production automation with inlaid rolling skin easy to exchange and maintain. The significance of ball press machine I t helps realize the lar...

sunset

Search This Blog