GUOCHU TECHNOLOGY (Xiamen) Co., Ltd. | E-Showroom
In China's industrial production, a large number of acidic or
alkaline waste liquids are usually produced, which contain different
concentrations of metal ions and acid-base. The direct discharge not only
wastes resources, but also causes serious pollution to the environment. In
order to protect the environment from pollution and to recover useful material,
it is necessary to purify the acid and alkali waste liquid before it is
discharged. Most of the treatment of this kind of waste water is neutralized at
home and abroad, and this treatment is easy to cause secondary pollution. The
new membrane technology, such as permeation, reverse osmosis, nanofiltration,
ultrafiltration and dialysis, can effectively avoid secondary pollution.
As a new separation technology,
membrane technology can effectively purify the waste water, and recycle the
useful material, and has the characteristics of energy saving, low consumption,
no pollution, simple equipment, convenient operation, so it shows broad
prospects in terms of pH of the waste water treatment.
1. Acid
environment
Acid
solutions (part) that have been tested:
l 20% H2SO4
l 20% HCl
l 30% H3PO4
l 4% HNO3
Typical
applications in acid environment:
l Purify
acid and remove metal cations
l Recovery
of acid after leaching operation
l Mineral
acid decolorization
l Recovery
of dissolved chemicals
l Concentration
and recovery of ions in an acid solution
l Some
conventional applications that need to be used for corrosive strong acid
cleaning
l Chemical
industry: the recovery of acid and the final product in the process of producing
acid medium
l Food,
beverage and dairy industry: purify the acid after the use of the CIP process
and reuse in the process of production and the cleaning of equipment.
l Recovery
of metals from the extractive solution, such as copper, zinc, cobalt, molybdenum,
tungsten, uranium, gold, etc..
l Reducing
the cost of operation and sewage treatment
l Recovery
of high value metals from emission and industrial waste water
l Pre
separation of copper and gold in the process of carbon slurry to improve the
extraction rate of subsequent gold.
2. Alkaline
environment
The
tested alkaline solutions include:
l 4% NaOH
l 10% NaOH
l 20% NaOH
l 20% KOH
Typical
applications in alkaline environment:
l Recovery
of alkaline current (sodium hydroxide, potassium hydroxide)
l Recovery
of metal in alkaline flow
l Recovery
of used electrolyte
l Reducing
COD content before neutralizing industrial waste water
l Recovery
of alkaline solution for cleaning containers and equipment
l Some
conventional applications that need caustic alkali cleaning
l Pulp and
artificial fiber: purification of caustic soda from hemicellulose and other
organic pollutants to make sodium hydroxide reusable up to 95%
l Food,
beverage and dairy products: Purification of waste lye washing flow (CIP)
solution and regenerated solution (in Decolorization of sugar) after ion
exchange, to make the repeated use rate of sodium hydrate up to 95%;
l Chemical:
alkali recovery and final product concentration used in many alkaline
environmental production operations. Contact:Tel:+86 592 6514970Skype:18060902001WhatsApp:18060902001WeChat:18060902001TM: guochukejiQQ:1641011431
alkaline waste liquids are usually produced, which contain different
concentrations of metal ions and acid-base. The direct discharge not only
wastes resources, but also causes serious pollution to the environment. In
order to protect the environment from pollution and to recover useful material,
it is necessary to purify the acid and alkali waste liquid before it is
discharged. Most of the treatment of this kind of waste water is neutralized at
home and abroad, and this treatment is easy to cause secondary pollution. The
new membrane technology, such as permeation, reverse osmosis, nanofiltration,
ultrafiltration and dialysis, can effectively avoid secondary pollution.
As a new separation technology,
membrane technology can effectively purify the waste water, and recycle the
useful material, and has the characteristics of energy saving, low consumption,
no pollution, simple equipment, convenient operation, so it shows broad
prospects in terms of pH of the waste water treatment.
1. Acid
environment
Acid
solutions (part) that have been tested:
l 20% H2SO4
l 20% HCl
l 30% H3PO4
l 4% HNO3
Typical
applications in acid environment:
l Purify
acid and remove metal cations
l Recovery
of acid after leaching operation
l Mineral
acid decolorization
l Recovery
of dissolved chemicals
l Concentration
and recovery of ions in an acid solution
l Some
conventional applications that need to be used for corrosive strong acid
cleaning
l Chemical
industry: the recovery of acid and the final product in the process of producing
acid medium
l Food,
beverage and dairy industry: purify the acid after the use of the CIP process
and reuse in the process of production and the cleaning of equipment.
l Recovery
of metals from the extractive solution, such as copper, zinc, cobalt, molybdenum,
tungsten, uranium, gold, etc..
l Reducing
the cost of operation and sewage treatment
l Recovery
of high value metals from emission and industrial waste water
l Pre
separation of copper and gold in the process of carbon slurry to improve the
extraction rate of subsequent gold.
2. Alkaline
environment
The
tested alkaline solutions include:
l 4% NaOH
l 10% NaOH
l 20% NaOH
l 20% KOH
Typical
applications in alkaline environment:
l Recovery
of alkaline current (sodium hydroxide, potassium hydroxide)
l Recovery
of metal in alkaline flow
l Recovery
of used electrolyte
l Reducing
COD content before neutralizing industrial waste water
l Recovery
of alkaline solution for cleaning containers and equipment
l Some
conventional applications that need caustic alkali cleaning
l Pulp and
artificial fiber: purification of caustic soda from hemicellulose and other
organic pollutants to make sodium hydroxide reusable up to 95%
l Food,
beverage and dairy products: Purification of waste lye washing flow (CIP)
solution and regenerated solution (in Decolorization of sugar) after ion
exchange, to make the repeated use rate of sodium hydrate up to 95%;
l Chemical:
alkali recovery and final product concentration used in many alkaline
environmental production operations. Contact:Tel:+86 592 6514970Skype:18060902001WhatsApp:18060902001WeChat:18060902001TM: guochukejiQQ:1641011431
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In China's industrial production, a large number of acidic or alkaline waste liquids are usually produced, which contain different concentrations of metal ions and acid-base. The direct discharge not only wastes resources, but also causes serious pollution to the environment. In order to protect the environment from pollution and to recover useful material, it is necessary to purify the acid and alkali waste liquid before it is discharged. Most of the treatment of this kind of waste water is neutralized at home and abroad, and this treatment is easy to cause secondary pollution. The new membrane technology, such as permeation, reverse osmosis, nanofiltration, ultrafiltration and dialysis, can effectively avoid secondary pollution.As a new separation technology, membrane technology can effectively purify the waste water, and recycle the useful material, and has the characteristics of energy saving, low consumption, no pollution, simple equipment, convenient operation, so it shows broad prospects in terms of pH of the waste water treatment. 1. Acid environmentAcid solutions (part) that have been tested:l 20% H2SO4 l 20% HCl l 30% H3PO4 l 4% HNO3 Typical applications in acid environment:l Purify acid and remove metal cationsl Recovery of acid after leaching operationl Mineral acid decolorizationl Recovery of dissolved chemicalsl Concentration and recovery of ions in an acid solutionl Some conventional applications that need to be used for corrosive strong acid cleaningl Chemical industry: the recovery of acid and the final product in the process of producing acid mediuml Food, beverage and dairy industry: purify the acid after the use of the CIP process and reuse in the process of production and the cleaning of equipment.l Recovery of metals from the extractive solution, such as copper, zinc, cobalt, molybdenum, tungsten, uranium, gold, etc..l Reducing the cost of operation and sewage treatmentl Recovery of high value metals from emission and industrial waste waterl Pre separation of copper and gold in the process of carbon slurry to improve the extraction rate of subsequent gold. 2. Alkaline environmentThe tested alkaline solutions include:l 4% NaOHl 10% NaOHl 20% NaOHl 20% KOH Typical applications in alkaline environment:l Recovery of alkaline current (sodium hydroxide, potassium hydroxide)l Recovery of metal in alkaline flowl Recovery of used electrolytel Reducing COD content before neutralizing industrial waste waterl Recovery of alkaline solution for cleaning containers and equipmentl Some conventional applications that need caustic alkali cleaningl Pulp and artificial fiber: purification of caustic soda from hemicellulose and other organic pollutants to make sodium hydroxide reusable up to 95%l Food, beverage and dairy products: Purification of waste lye washing flow (CIP) solution and regenerated solution (in Decolorization of sugar) after ion exchange, to make the repeated use rate of sodium hydrate up to 95%;l Chemical: alkali recovery and final product concentration used in many alkaline environmental production operations. Contact:Tel:+86 592 6514970Skype:18060902001WhatsApp:18060902001WeChat:18060902001TM: guochukejiQQ:1641011431
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