The waste water produced by production needs to scientifically reduce the amount of heavy metals
2021-08-26

Now there are more and more kinds of materials used in the industrial industry, such as the common aluminum plate. Aluminum is used in many industrial occasions because aluminum has excellent performance, which is required by many industrial production. Where are the aluminum plates produced mainly used? Maybe you don't know the specific situation. At the same time, industrial manufacturers also need to consider the waste generated by the production of aluminum plates. Now let's introduce aluminum plate to you, so that you can better understand aluminum plate.

Application of aluminum plate in various industries:

1. Aluminum materials for packaging all aluminum cans can making materials mainly take the form of sheet and foil as metal packaging materials to make cans, covers, bottles, barrels and packaging foil. It is widely used in the packaging of beverage, food, cosmetics and other industrial products.

2. Aluminum for printing is mainly used to make PS plate. Aluminum based PS plate is a new material in the printing industry, which is used for automatic plate making and printing.

3. Aluminum materials for electronic appliances are mainly used in various fields such as buses, stringing, conductors, electrical components, refrigerators, air conditioners, cables and so on.

4. The application of world super alloy products is widely used in decoration, packaging, construction, transportation, electronics, aviation, aerospace, weapons and other industries.

5. Aluminum materials for aerospace are used for manufacturing, fuselage frame, girder, rotor, propeller, oil tank, wall plate and landing gear strut, as well as rocket forged ring, spacecraft wall plate, etc.

6. Aluminum materials for transportation are used for body structural parts of automobiles, subway vehicles, railway passenger cars and high-speed passenger cars, doors and windows, shelves, automobile engine parts, air conditioners, radiators, body panels, wheel hubs and naval ships.

How to treat aluminum plate wastewater is particularly important, mainly because there are some chemical elements and a variety of aluminum salts in the wastewater. Because aluminum salts are amphoteric compounds, their forms change with the influence of acid, alkalinity and other examples, which brings difficulty to their treatment.

For heavy metal wastewater, no matter what treatment method is adopted, it can not decompose and destroy the heavy metals, but can only transfer their existing mode and physicochemical form. The key is to adopt reasonable process flow, scientific management and operation, reduce the amount of heavy metals and loss with the wastewater, minimize the amount of discharged wastewater and reuse the treated wastewater. There are two general treatment methods: one is to change the dissolved heavy metal ions in the wastewater into insoluble heavy metal compounds, which are removed from the wastewater by precipitation method and air flotation method; The other is to concentrate and separate the heavy metals in the wastewater without changing their chemical forms.

The direct discharge of wastewater will seriously pollute the surrounding ecological environment, which must be strictly controlled before discharge or reuse. Wastewater treatment has always been a key concern for our country, so the future treatment methods will be better and better.