Copper Mine Wasterwater Polyacrylamide
After the raw ore enters the dressing plant through crushing, grinding and separation, the useful mineral in the ore is sorted into one or more concentrate products, and the tailings are discharged in the state of slurry.Large amounts of tailings can be dangerous if not properly treated.The...
After the raw ore enters the dressing plant through crushing, grinding and separation, the useful mineral in the ore is sorted into one or more concentrate products, and the tailings are discharged in the state of slurry.Large amounts of tailings can be dangerous if not properly treated.The tailings water discharged by the concentrator often contains a large number of reagents and hazardous substances, and its source is the flotation reagent added in the course of ore dressing and the metal elements in the ore. Common reagents include cyanide, yellow, black, pine oil, copper ions, lead ions, zinc ions, and in some cases arsenic, phenol and mercury, etc.The tailings are flocculated by
After the raw ore enters the dressing plant through crushing, grinding and separation, the useful mineral in the ore is sorted into one or more concentrate products, and the tailings are discharged in the state of slurry.Large amounts of tailings can be dangerous if not properly treated.The tailings water discharged by the concentrator often contains a large number of reagents and hazardous substances, and its source is the flotation reagent added in the course of ore dressing and the metal elements in the ore. Common reagents include cyanide, yellow, black, pine oil, copper ions, lead ions, zinc ions, and in some cases arsenic, phenol and mercury, etc.The tailings are flocculated by QUANSEN polymer flocculant, and the tailings mud can be used for dry discharge, dry pile or comprehensive utilization after being dehydrated by dewatering equipment.
Application Of Quansen Pam In Copper Mine
【Copper mine sewage treatment process】
Quansen flocculant sedimentation method is widely used in heavy metal flotation and sewage treatment.Due to the high pH value of this type of sewage, which is usually in the range of 9-12 and sometimes even more than 14, there are suspended solid particles with slow sedimentation rate, large amounts of colloids, some trace soluble heavy metal ions and organics.
Chemical precipitation method is a conventional treatment method for copper and most heavy metals. Generally, acidic copper containing sewage can reach 0.5mg/L in the effluent after adjusting the ph value and then being filtered through precipitation.Chemical treatment of copper-containing wastewater by chemical method has many advantages, such as mature technology, less investment, low treatment cost, strong adaptability, convenient management and high degree of automation. Under proper conditions, the quality concentration of copper ions in the treated wastewater is significantly lower than the sewage discharge standard stipulated by national standards.
Flocculant is used as a precipitating agent in the treatment of sewage, and flocculant can flocculate heavy metal ions in waste water into clumps by virtue of its unique chemical characteristics, so as to achieve a good purification purpose.However, before using flocculant, attention should be paid to the ph value of the waste water. If the ph value is low, inorganic flocculants such as polyaluminum chloride pac and iron salt can be used together with flocculant.
It is necessary to make a lab test before choosing flocculant in the field, and the test can be carried out after determining the suitable flocculant type.
【process of using flocculant in copper smelting】
In this way, the final mineral particle size is usually less than 100UM. In the final crushing process, mineral dressing agents are often added to make the particles hydrophobic.These copper deposits will be enriched by flotation processes.In suspension, air is pumped into the slurry, and the foaming agent is added to generate bubbles so that the copper particles can be firmly adsorbed on the slurry bubble. The mineral slurry extracted from the flotation enters the concentration pool and is further precipitated by adding polyacrylamide (flocculant).The bubbles full of copper are mechanically separated from the overflow and then condensed and dehydrated. At this time, polyacrylamide is used to improve precipitation and filtration efficiency. The resulting concentrate or filter cake contains 25% to 35% copper, which is then recycled through high temperature smelting technology.
【Usage of QUANSEN polyacrylamide】
Suitable dosage forms and types can be selected according to the purpose of application, and the dosage can be determined through experiments.
When used as a flocculant for water treatment, solid is generally dissolved into liquid first.The concentration of 0.1%~0.5% can be prepared in the laboratory.
Industrial equipment suitable for flocculant dissolution is required for on-site use of water treatment.When the polyacrylamide solution is very dilute, it is still very thick. Avoid sharp shearing when stirring, and the particles should be dispersed evenly in water.
The reference standard for dosing is: relatively sparse inorganic suspensions (1m3) : 0.5~3g/ m3;Concentrated inorganic suspensions (1m3) : 2~20g/ m3;Filtration or centrifugation of inorganic slurry (1t dry solids) : 25~300g.
【Quansen PAM specification】
Copper mine wastewater treatment by QUANSEN polyacrylamide not only should consider its actual molecular weight, price, etc., degree of hydrolysis is one of the indicators must be considered, because it is very important to use effect, generally speaking, the less the greater the degree of hydrolysis, adsorption, adverse to the adsorption and hydrolysis of spending small, dissolving ability is poor, not enough to make molecular chain extension, bridging, experiments show that the hydrolysis of polyacrylamide degrees at around 30%, flocculating ability strongest.
Dissolution duration （h)
【 attention 】
1. When used, it is extremely important to effectively disperse the product in the water, otherwise it will lead to the aggregation of dispersants and the production of "fisheye", and the dissolution time will increase.
2, use warm water can accelerate the dissolution rate, but the temperature is too high, lead to the thermal degradation of polymer chain, viscosity will be affected, the average water temperature should not exceed 50 ℃.
3. Using stirring can help dissolve, but stirring too violently can break down the long chain of dispersing agent, and it is better to adopt ship type propulsion.
4. The water solution should not be stored for more than 48 hours, otherwise the viscosity will be reduced and the effect will be affected.
【 safety 】
1. Quansen polyacrylamide is a water-soluble polymer, in case of water or liquids of high skid form is formed after soluble in water.Prevent products and their aqueous solutions from spilling onto the floor.If any, should timely use sand, sawdust adsorption, clean it.
2. The product is powder, the operation room should be careful to prevent dust inhalation or adhesion to the body.Wear masks, gloves and overalls to operate according to specifications.
3. Please refer to the safety data manual (MSDS) provided by the company for detailed safety operation guidance.
4. This product and its aqueous solution are not corrosive to the general materials such as stainless steel, plastic, rubber, glass and glass, etc., for the manufacture of tanks, mixers, gauges and pipelines.
1. High and stable product quality
2. Varieties of product series
3. Customer designed system solutions
4. Professional technical service team
5. Accumulated experiences of successful application at customer’s side
【 storage 】
The original product shall be kept sealed.Storage environments should be a cool, dry and ventilated, at room temperature for 10 ~ 40 ℃.Special precautions should be taken to prevent product absorption.
In accordance with the specified storage conditions, the original packaging products can be stable for at least 12 months.
【 packing 】
25kg composite paper bag /750kg pallet OR customer demand.