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The zero discharge system of electroplating wastewater mainly uses the membrane separation technology. Because the membrane separation technology has the advantages of low energy consumption, no phase change, no pollution, and high separation efficiency and concentration times, the appropriate membrane separation is used to concentrate the rinse water of electroplating solution, and the concentration times can reach 100 times (in volume). After membrane separation, the concentrated solution returns to a certain nickel ion concentration after proper treatment
Published on: March 23, 2019 Number of hits: 144
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What do you know about electroplating wastewater treatment equipment? Now our environment has been seriously polluted, so electroplating wastewater treatment equipment is to meet environmental protection and resource conservation. Do you know how to use electroplating wastewater treatment equipment? Let's take a look at the specific use of electroplating wastewater treatment equipment. 1. Primary sedimentation tank:
Published on: March 21, 2019 Number of hits: 158
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In electroplating operation, temperature control is very strict, so there will be a complete problem control system in the electroplating equipment. Now let's look at what equipment is included in this system and how to ensure the temperature required for electroplating operation. Process temperature control is the most important link in electroplating process. If the temperature fluctuates greatly, it will directly affect the quality of electroplating and also cause energy waste. present
Published on: March 19, 2019 Number of hits: 244
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Treatment of Class III wastewater: (a) Treatment of pickling wastewater: adjust the pH of pickling wastewater to 6-9 with sodium hydroxide solution, and inflate it in air for 2-12 hours. After precipitation removal, the strong acid cation exchange resin is used to adsorb the clarified solution to remove the metal cations, and then the reverse osmosis device is used to concentrate and recover the low salt water. Transmission of strong acid cation exchange resin regeneration solution
Published on: March 16, 2019 Clicks: 191
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Widespread attention is paid to sewage treatment equipment. Many electroplating development control technologies at home and abroad. With the rapid development of electroplating industry, more and more environmental requirements are required. At present, electroplating wastewater has begun to enter the integration stage of cleaner production process, total amount control and circular economy. In recent years, with the continuous improvement of environmental protection industry, electroplating
Published on: March 13, 2019 Clicks: 137
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Not all metal ions can precipitate from aqueous solution. If the side reaction of hydrogen ion reduction to hydrogen is dominant on the cathode, it is difficult for metal ions to precipitate on the cathode. According to the experimental results, the possibility of electrodeposition of metal ions in aqueous solution can be obtained from the periodic table of elements. Anodes can be divided into soluble anodes and insoluble anodes, most of which are soluble anodes and
Published on: March 11, 2019 Clicks: 227
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(1) First of all, enterprises are required to adjust and improve production, save water, improve the recycling rate of production water, and carry out separate pre-treatment of all kinds of wastewater to minimize the amount of wastewater end treatment; (2) In order to transform the existing sewage treatment system, the sewage treatment system adopts the traditional chemical precipitation process, which is technically feasible. However, since the processing system has operated for many years, it is necessary to
Published on: March 9, 2019 Clicks: 149
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For the whole world, the storage of water resources is limited in itself. With the continuous discharge of various industrial wastewater and domestic sewage, a large number of original clean water quality has been polluted, making available water in life increasingly scarce. With the continuous increase of various industrial construction, this kind of harm is also expanding. Only by making more rational use of limited resources can this vicious circle be alleviated. For me
Published on: March 7, 2019 Number of hits: 106
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With the rapid development of our country, electroplating equipment has become an indispensable part of the production workshop. In order to complete electroplating processing according to process requirements in industrial production, not only power supply and electroplating tank, but also some auxiliary equipment are required to ensure the normal production of electroplating. It includes cathode moving or mixing equipment, heating or cooling equipment, electroplating solution circulation or filtering equipment, and electroplating tank
Published on: March 5, 2019 Number of hits: 177
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A large amount of wastewater will be produced in the production process of electroplating plants. Untreated discharge of waste water will cause great loss of water resources, shortage of water resources, serious damage to the environment, and is not conducive to the sustainable development of electroplating enterprises. At present, most electroplating plants adopt zero wastewater discharge technology, which can help electroplating enterprises to better treat water and achieve zero wastewater discharge. The term "zero discharge of electroplating wastewater" often appears
Published on: March 2, 2019 Number of hits: 166
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Treatment of wastewater or waste liquid discharged from electroplating production. The wastewater and waste liquid discharged from the electroplating factory contain a large number of metal ions, such as chromium, pickaxe, nickel, cyanide, acid, alkali, and generally organic additives. Some metal ions exist in the form of simple cations, some exist in the form of acid anion, and some exist in the form of complex complex ions. Commonly used neutralization in electroplating wastewater treatment
Published on: February 27, 2019 Clicks: 192
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What types of power supply are commonly used for electroplating equipment? The common power supply of the equipment has the following five types: 1. The DC generator is an early electroplating power supply, which has the advantages of stable power supply and large overload capacity, but it has large energy consumption, low efficiency, large noise and poor economy. Large electroplating workshops use less, only temporary
Published on: February 25, 2019 Number of hits: 481
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In recent years, with the improvement of China's requirements for cleaner production in electroplating industry and the introduction of some local laws and regulations, zero discharge of wastewater from electroplating enterprises has become a development trend in the new era. Membrane separation technology has been widely used in the zero discharge of electroplating wastewater, and achieved good results. Zero discharge of electroplating wastewater plays an important role
Published on: February 21, 2019 Clicks: 211
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The ultrafiltration system of sewage treatment equipment has high recovery rate and good product quality. High efficiency separation, purification and high concentration multiple concentration of materials are realized. The sewage treatment equipment can treat the comprehensive wastewater of the living system and similar organic wastewater; Corrosion resistance and aging resistance of stainless steel for more than 10 years, carbon steel for 20 years
Published on: February 18, 2019 Number of hits: 117
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Electroplating equipment Electroplating plants produce a large amount of wastewater in the process of parts electroplating, which contains a large number of heavy metal ions, such as chromium, cadmium, nickel, copper, zinc, gold, silver and other heavy metal ions and cyanide. Some exist in the form of simple cations, others in the form of acid groups and complexes. Electroplating production wastewater usually comes from pickling, electroplating, workshop cleaning, equipment condensate, etc. electric
Published on: February 16, 2019 Number of hits: 282
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The zero discharge system of electroplating wastewater mainly uses the membrane separation technology. Because the membrane separation technology has the advantages of low energy consumption, no phase change, no pollution, and high separation efficiency and concentration times, the appropriate membrane separation is used to concentrate the rinse water of electroplating solution, and the concentration times can reach 100 times (in volume). Concentration after membrane separation
Published on: February 16, 2019 Number of hits: 207
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In daily work, buried domestic sewage treatment equipment is often subject to routine maintenance and fault repair. What aspects should be paid attention to when repairing domestic sewage treatment equipment? According to years of work experience, there are mainly the following five aspects: First, the PH value of sewage entering the geographical domestic sewage treatment equipment must be between 6-9, and the acid and alkali will affect the biology
Published on: February 12, 2019 Number of hits: 251
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The surface condition and processing requirements in the electroplating process, and the selection of appropriate steps to finish the surface of parts to make the surface of parts smooth and smooth is an important link to obtain high-quality coating. In the pretreatment process of electroplating, the main equipment includes grinding machine, polishing machine, brushing machine, sandblasting machine, rolling mill and various
Published on: January 28, 2019 Number of hits: 244
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Treatment of wastewater or waste liquid discharged from electroplating production. The wastewater and waste liquid discharged from the electroplating factory contain a large number of metal ions, such as chromium, pickaxe, nickel, cyanide, acid, alkali, and generally organic additives. Some metal ions exist in the form of simple cations, some exist in the form of acid anion, and some exist in the form of complex complex ions. Commonly used neutralization in electroplating wastewater treatment
Published on: January 26, 2019 Number of hits: 219
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The wastewater quality of electroplating industry is complex. The wastewater contains heavy metal ions such as chromium, zinc, copper, nickel, cadmium and other toxic impurities such as acid and alkali. The industrial wastewater has the following characteristics: (1) The composition is complex, and the pollutants can be divided into two categories: inorganic pollutants and organic pollutants. (2) The water quality changes greatly, and the production wastewater pollutants of each share
Published on: January 25th, 2019 Number of hits: 156
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