Zinc is an important metal element, widely used in alloy, coating and electroplating industries. However, zinc pollution in wastewater has a great impact on the ecological environment. Therefore, the development of efficient zinc removal technology is particularly important. The combined extraction centrifugal extractor provides a new technical route for zinc extraction.

Environmental properties of zinc

The main form of zinc present in water is Zn² +, which has a strong water solubility. The excessive discharge of zinc not only affects the water quality, but also has a negative impact on the growth and reproduction of aquatic organisms. Zinc accumulation in water bodies can also cause imbalances in ecosystems.

Separation principle of combined extraction centrifugal extractor

The combined extraction centrifugal extractor realizes the separation of zinc from wastewater by the action of centrifugal force. Its working process mainly includes:

1. Feed: Input the zinc-containing wastewater into the equipment.

2. Centrifugal action: Through high-speed rotation, zinc ions settle due to their relatively large density.

3. Separation and collection: The zinc precipitate after sedimentation can be collected and further treated.

Optimized extraction conditions

In order to improve the extraction efficiency of zinc, the following conditions should be optimized:

1. Centrifugal speed: Higher speed can speed up the sedimentation rate of zinc, usually recommended between 3500-7000 rpm.

2. Processing time: Increasing the processing time can improve the extraction rate, and the recommended time is 20-30 minutes.

3. pH adjustment: The change of pH value has a significant effect on the precipitation of zinc, which is usually better under neutral to slightly acidic conditions.

Follow-up treatment and resource recovery of zinc

The zinc precipitates after extraction can be treated by smelting, roasting and other methods to recover zinc resources. This can not only reduce environmental pollution, but also realize the reuse of zinc, in line with the development concept of circular economy.

The application of combined extraction centrifugal extractor to extract zinc element in wastewater provides an efficient solution for the treatment of water pollution. With the continuous progress of environmental protection technology, its market application prospect will be broader.