1、 Overview:

The traditional treatment methods of heavy metal wastewater (such as electroplating wastewater, circuit board wastewater, etc.) are to adjust the pH to 8-11 with lime or liquid alkali, and add sodium sulfide solution to remove and separate various heavy metal ions by precipitation. However, when the wastewater contains chelating agents such as EDTA (a large number of chemical copper drugs exist in water), such chelating agents will form soluble complexes with heavy metal ions, which can not completely precipitate and separate heavy metals, and will not meet the environmental protection discharge standard.

This product is a sulfur-containing organic polymer product. It can directly react with a variety of heavy metal ions (Hg2 +, Cd2 +, Cu2 +, Pb2 +, Mn2 +, Ni2 +, Zn2 +, Cr3 +, Cr6 +) at room temperature to quickly form insoluble macromolecular chelate salts and form flocculation precipitation, so as to achieve the purpose of capturing and removing heavy metal ions. It is widely used to remove heavy metals from electroplating wastewater and circuit board wastewater. The wastewater treated by this product can fully meet the national discharge standard, eliminate all kinds of troubles caused by excessive heavy metals, and truly become an environmental protection enterprise. It is characterized by:
1. The treatment method is simple and the dosage is small. Generally, the actual dosage is 10-40g / m3;
2. It has good treatment effect, forms insoluble chelates with heavy metal ions, and has low solubility. Residual copper as low as 0.2mg/l (PPM);
3. It can destroy the soluble complex formed by heavy metal ions and EDTA and other complexing agents to form water-insoluble chelate salts;
4. Coarse condensate, fast sedimentation and less sludge;
5. It has a wide range of application and can be used between ph7-11.

2、 Product purpose:

It is applied to the treatment of industrial wastewater containing heavy metal ions to remove heavy metals. It is suitable for electric circuit board industry, electroplating industry, metal processing industry and other industries.

3、 Technical indicators:

4、 Usage:

Dilute the an-150l stock solution to the concentration of 1-2%, determine the total dosage according to the content of heavy metal ions in the wastewater, and put it into the wastewater continuously or in batches. When treating the wastewater, the an-150l and the wastewater must be fully stirred. The mixing time is about 10-20 minutes. The pH adjustment of wastewater treatment is between 7-11, and the effect is the best. And add an appropriate amount of inorganic or organic flocculant. The heavy metal sediment must stand for about 15 minutes before being separated from water. If the treated sewage contains a variety of heavy metal ions, the amount of this product is the sum of the requirements of various ions.

The optimum dosage should be determined by test, usually after adjusting pH and adding sodium sulfide.

The following table shows the amount of an-150l required to remove 1ppm heavy metal ions (PPM):

5、 Packaging and storage:

25kg plastic barrel, can also be packed in ton cans according to customer requirements.

It shall be stored in a ventilated place indoors and shall not be mixed with acidic or oxidizing articles.

The shelf life of the product is 1 year.

6、 Precautions:

Although this product is not a dangerous chemical product, it is a weakly alkaline product. Necessary protective measures must be taken during use to avoid direct contact with human body.

This product does not contain sodium sulfide and is a pure organic sulfur compound.

If touched accidentally, please wash with plenty of water for 15 minutes.