Section 1: Definition of Nickel Additive

Nickel Remover is a specialized agent derived from heavy metal scavengers, designed to treat nickel ions in wastewater. It not only enhances the efficiency of wastewater treatment but also reduces material waste. The available heavy metal scavengers on the market come in both liquid and solid forms, while the Nickel Remover predominantly exists in a solid state. This is due to the higher concentration of effective substances in solids, lower cost per ton of water treatment, and greater convenience in transportation.

Section II: Mechanism of Action of Nickel Agent

The basic principle of nickel removal agents is to act on pre-treated nickel-containing wastewater, causing nickel ions to separate from the wastewater through physical and chemical precipitation, achieving compliance with discharge standards. By utilizing the principle of nickel ion chelation precipitation, the ion or complexed nickel ions in the wastewater are chelated into insoluble groups. After simple coagulation, these groups are formed into larger clusters and then precipitated and removed.

Section 3: Product Models of Nickel-free Agents

The full name of the nickel removal agent is High Performance Nickel Removal Agent HMC-M2, model: HMC-M2. It is a product of Zhanqing Environmental Protection Technology. It has a white granular appearance, odorless, and is primarily composed of organic substances, non-combustible, and non-hazardous waste. It is non-toxic and can be used to treat nickel-containing wastewater from various industries such as electronics, chemical, mechanical manufacturing, electroplating, and circuit boards. It can also effectively treat difficult-to-treat wastewater like chemical nickel and chelated nickel, meeting the nickel ion discharge standards in Table 3.

Section 4: Application Method of Nickel Agent

The efficient nickel-removing agent is suitable for water with a pH range of 2-11, offering a broad spectrum. It produces less sludge, and it is recommended to first conduct a small-scale test to determine the dosage before proceeding with actual production use.

Mini-Test Steps:

(1) Dosage: Estimate can be based on 7-10 times the concentration of nickel ions.

(2) Reaction pH Value: The reaction can be conducted under both acidic and alkaline conditions for comparison of reaction effects.

(3) Determine reaction conditions: Based on the results from the aforementioned two steps, determine the dosage and pH value, and combine cost considerations with the controllability of the chemicals.

(4) Field Application: Apply the experimental results from the aforementioned three steps in a practical setting, combining the on-site process and guided by professional technical personnel.

Chapter 5: Application Industries

Primarily used for treating heavy metal nickel ions in wastewater from industries such as printed circuit boards and electroplating.