Stone processing plant sewage treatment equipment

Introduction to Stone Processing Wastewater Treatment Equipment: Stone is widely used in indoor and outdoor decoration design, curtain wall decoration, and public facility construction. At present, the common types of stone in the market are mainly divided into natural stone and artificial stone. Most of the required stone materials have certain shape specifications, which has led to the formation of many stone processing factories. During the processing, a large amount of wastewater is generated, causing pollution to the environment. So, how should we deal with such wastewater? Stone processing wastewater treatment equipment can solve the problem of such wastewater treatment.

The stone processing wastewater treatment machine in the stone factory can turn the mud produced by grinding the stone factory, granite cutting, and marble cutting in industrial production into mud cakes. Help you achieve mud water separation, the water produced is clear and can be recycled, and can meet the requirements of the environmental protection bureau.

Stone wastewater treatment can adopt an underground sewage treatment system, which consists of an underground vertical flow sedimentation tank, a mud water separator (filter press, sand removal machine), and supporting pump valves.

Wastewater treatment: The process of purifying wastewater to meet the water quality requirements for drainage or reuse in a specific body of water. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, healthcare, catering, etc., and is also increasingly entering the daily lives of ordinary people.

According to the classification of sewage sources, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. Production wastewater includes industrial wastewater, agricultural wastewater, and medical wastewater, while domestic wastewater refers to the wastewater generated in daily life, which is a complex mixture of various forms of inorganic and organic matter, including floating and suspended solid particles of different sizes; Colloidal and gel like diffusers; Pure solution.

The stone industry not only consumes a large amount of water resources, but also the discharge of stone wastewater can cause serious pollution to water bodies. Although this type of stone powder and sludge is a physically changing substance, after being discharged into rivers, ponds, and reservoirs, it will tightly seal the bottom of the water after sedimentation, causing serious water pollution. However, through reasonable reuse treatment, it not only protects the environment but also saves considerable water and sewage fees, relatively improving the competitiveness of enterprises.

Wastewater treatment process for stone processing plant:

At present, the main methods for treating stone wastewater both domestically and internationally include physical treatment, chemical treatment, and biochemical treatment. These methods separate and remove pollutants from wastewater, recycle them, or convert them into harmless substances to purify the water. The main characteristic of wastewater in the stone processing industry is high suspended solids content.

1. Settlement method

Most existing stone manufacturers generally use sedimentation methods, including natural sedimentation and coagulation sedimentation, to remove pollutants. There are many options for pool types, such as horizontal or vertical flow. The current stone wastewater treatment process is shown in the figure.

After being collected through the pipes and channels in the factory area, the stone wastewater enters the regulating tank for homogenization and uniformity. After adding coagulants and coagulants, it reacts in the reaction tank to produce alum flowers. Through sedimentation in the sedimentation tank, most of the suspended solids settle to the bottom of the tank, and the supernatant enters the clean water tank. It then enters the production workshop through the reuse water system for reuse or standard discharge. This treatment process occupies a large area, has incomplete treatment effect, and is prone to secondary pollution.

2. Integrated sewage treatment equipment method

Regarding the stone wastewater, which mainly contains stone powder (composed of SiO2, CaO, CaCO3, etc.), a small amount of diamond particles, abrasive particles, and flushing mud and sand. Compared to mill wastewater, the water quality of sawmill and edge cutting machine wastewater is more similar, with coarser particles and a small amount of organic coolant (mainly saponification substances, Taikoo oil, etc.) in the wastewater.

The use of integrated stone wastewater treatment equipment can greatly reduce treatment costs and improve treatment efficiency.

Advantages of stone processing wastewater treatment equipment:

1) Small footprint, high degree of integrated automation, strong stability, no need for dedicated personnel to be on duty;

2) The effluent quality is excellent and can meet the first level standard in the "Urban Comprehensive Wastewater Discharge Standard" (GB 4287-92);

3) Easy installation and debugging, operate according to the user manual, and can run at full load in one week under normal temperature climate;

4) Low or no sludge production;

5) Short construction period and small civil engineering quantity;

6) Low operating costs and cost savings;

7) Low comprehensive construction cost, high cost-effectiveness for scale below 500m3/d.