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Category: Water treatment

JOHNSON SCREEN

V Wire Screen Panels for Water Treatment to France

Wedge wire screen panels can be applied to water treatment. Today, we completed 80 pieces of screen in 2 weeks. Bluslot can customize screen panels products of various specifications. Wedge Wire Screen Panels (Blu-Sp-12) Specifications Type: Wedge wire screen panels. Model: Blu-Sp-12 Material: Stainless steel 304. Slot size: 1.0 – 2.0 mm. Profile wire: 2.5…
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Filter Element For Iron And Manganese Removal In Circulating Water

The iron removal process of manganese sand filter material Natural manganese sand mainly adopts contact oxidation, catalytic process, and wedge wire screen filter element, which is mainly suitable for the process of iron removal in groundwater with iron content less than 20mg / L. The high valence manganese contained in natural manganese sand can oxidize…
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Johnson Wedge Wire Resin Trap Screen for Sodium-Ion Exchanger

Wedge Wire Resin Trap Screen for Sodium-Ion Exchanger Sodium-ion exchanger, namely softener, is used to remove calcium ion and magnesium ion in water to produce softened water. The calcium and magnesium ions in the water are exchanged with the ion exchange resin in the softener. The calcium and magnesium ions in the water are exchanged…
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Application of metal filter element in a nuclear power plant

Application of Wedge Wire Filter in Nuclear Power Plant Water treatment is divided into physical treatment and chemical treatment. The wedge wire filter is a new type of filter material used in the physical treatment process. Different from the traditional process, the wedge wire screen filter adopts the resistance welding process, which can realize automatic…
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Recirculating aquaculture system RAS

Sieve bend screen page: Click me.Parabolic Screen page: Click me. The recirculating aquaculture system (RAS) is a new type of aquaculture model, through a series of water treatment units, the wastewater produced in the aquaculture pond is treated and recycled again. The main principle of RAS is to integrate the advanced technologies in the fields…
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Treatment of domestic washing wastewater

Washing waste water is a mixed waste water composed of toilet water, bath water, washing water, kitchen rinse water and a small amount of miscellaneous drainage, which is the collection of all waste water except toilet waste water, kitchen dish waste liquid and kitchen waste crushing mixed liquid. This paper gives a brief introduction from…
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High salt wastewater treatment

The treatment of high salt wastewater is usually a “pre-treatment evaporation concentration crystallization desalination” process. According to the specific water quantity, water quality, effluent requirements, investment, operation cost and technical concept, different pretreatment process, technical equipment and evaporation concentration crystallization desalination process are selected under different conditions. 1. Traditional pretreatment process of coagulating air flotation…
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The cause of yellow of printing and dyeing wastewater after treatment

Printing and dyeing wastewater generally has the characteristics of high organic content, deep color and high alkalinity.If it is treated with ferrous sulfate and liquid alkali, there are two possibilities. Some inorganic metal ions in printing and dyeing wastewater that have not been precipitated. The color of organic matter; for the removal of inorganic metal…
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Survival of coronavirus in water and wastewater

The emergence of severe acute respiratory syndrome and its potential environmental transmission suggest that more information is needed on the survival of coronaviruses in water and wastewater. The survival rates of cat infectious peritonitis virus and human coronavirus 229E were measured in filtered and unfiltered tap water (4 ℃ and 23 ℃) and waste water…
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Advanced treatment of coking wastewater by membrane combination technology

The coking wastewater is a kind of toxic organic wastewater with high concentration, which is difficult to be degraded. The COD, SS, Cl, chroma and hardness in the wastewater are still difficult to reach the standard after the biological coagulation treatment. The wastewater can only be reused after the advanced treatment Experiment of coking wastewater…
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Sewage treatment process of automobile painting workshop

Coating refers to covering metal and non-metal surfaces with protective layer or decorative layer. Coating is an important part of product surface manufacturing process, which can effectively prevent rust and corrosion, and beautify the product appearance. With the rapid development of domestic coating technology, coating has been widely used in home appliances, machine tools, machinery,…
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Purification principle of coal washing plant wastewater using polyaluminum chloride PAC

Coal washing wastewater is the wastewater produced during the wet coal washing process in coal mines, coal washing wastewater contains a large amount of slime and sediment. It contains a certain amount of hydrocarbons, which need to be purified before being discharged. However, it is difficult for the coal washing wastewater to settle under static…
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How to deal with pollution by ion exchange resin?

Pollution blocking and treatment of suspended solids The suspended solids in the raw water will block the pores in the resin layer, thus increasing its flow resistance, increasing the operating pressure drop, and covering the surface of the resin particles, thus reducing the working exchange capacity of the resin.In order to prevent the pollution of…
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Resource utilization of pickling wastewater (waste acid)

Acid pickling wastewater (waste acid) refers to a kind of liquid waste produced in the process of steel rolling, metal surface treatment, electronic component manufacturing, etc., which is listed in the national list of hazardous wastes. According to the different chemical composition, acid pickling wastewater (waste acid) can be divided into three types: hydrochloric acid…
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Removal of nickel from electroplating wastewater by ion exchange resin

As a common surface treatment technology, nickel plating is widely used in electronics, automobile, machinery and other industries. The wastewater containing Ni2 + is harmful to human health and ecological environment. The common treatment methods include chemical precipitation, vacuum evaporation recovery, electrodialysis, reverse osmosis and ion exchange resin adsorption. Although the cost of chemical precipitation…
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Engineering design of reverse osmosis used in coal chemical industry reuse water treatment

The main water source of the reuse water treatment unit in a coal chemical plant is the effluent from the sewage treatment unit, the sewage from the circulating water field and the sewage from the desalted water station, the combined treatment process of homogenization tank, high efficiency clarifier, multi-media filter, ultrafiltration and reverse osmosis is…
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Common problems of rural sewage treatment equipment

Rural domestic sewage treatment equipment in the process of sewage treatment, sometimes there may be some problems, so what are the common problems? How can we solve it? If sludge is found to be white during operation Cause: Lack of nutrition, filamentous fungi or immobilized ciliates multiply, and mycelia grow poorly. High or low pH…
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Impact of Coronavirus on Environmental Protection Industry

The novel coronavirus infection epidemic situation appeared a serious trend of rapid spread at the beginning of the lunar new year in 2020. Due to the different industrial fields, regional distribution and industrial structure of the sub industries, the environmental protection industry shows a trend of positive and negative polarization due to the impact of…
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How to Recycle The Precipitated Pulp In Paper Mill

The pretreatment of waste paper and papermaking wastewater is the premise to ensure that the system meets the standard, main purpose of pretreatment: Recover the fiber in wastewater and reduce the load of biochemical system. In general, white water is recycled in the workshop, the pretreatment described in this paper is mainly the off-site treatment…
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Urban Sewage Treatment

Johnson Screen Products – Manufacturer There seems to be a contradictory relationship between economic development and environmental protection. Urban development will cause waste of resources and even damage to the environment, and the quality of people’s living standards will correspondingly decline, causing people’s dissatisfaction and social panic. Water pollution, environment pollution and air pollution are…
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River Sediment Treatment

Wedge Wire Rotary Drum Screen For River Sediment Treatment – Johnson Screen Manufacturer In general, the water content of river sediment is high and its strength is low, and there are potential environmental risks. At the same time, the cleared sludge lacks enough land or space for storage. Therefore, how to predict the sludge yield,…
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Treatment of Chemical Wastewater In Power Plants

JOHNSON SCREEN MANUFACTURER Characteristics and simple classification of wastewater from thermal power plants Sewage from thermal power plants includes industrial cooling water drainage, acid and alkali regeneration wastewater from chemical water treatment systems, filter backwash wastewater, boiler cleaning wastewater, coal transport washing and dust removal wastewater, oily wastewater, and cooling tower wastewater.Because there are many…
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Water treatment filtration equipment for the swimming pool industry

Johnson screen | wedge wire filter manufacturer In terms of the total amount of wastewater, such as papermaking, printing and dyeing, chemicals, pesticides, etc., the amount of water is small and the pollution surface is narrow. However, due to the wide distribution of factories in the surface treatment industry and the variety of high-toxic substances…
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Parabolic Screen

Parabolic Screen Parabolic Wedge Wire Screen Related products: Coanda Screen. Parabolic screen is also called sidehill screen and run down screen, it uses Coanda effect to remove impurities in materials at low cost. It is a static dewatering screen widely used in the water treatment industry. Wedge wire screen with bending angle has better solid-liquid…
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Coanda Screen

We are a Johnson screen (wedge wire screen) manufacturer (supplier) in China. We are the largest manufacturer of the Coanda Hydro Intake Screen in northern China. If you need a Coanda screen box, please send us detailed specification information, we will customize the perfect product for you. what is a Coanda screen? Coanda Hydro Intake…
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Drum Screen And Filter For Sewage Treatment In Cannery

We provide Johnson screen filter element (wedge wire filter) customization service for sewage treatment equipment and canning equipment of cannery. A large amount of organic waste water produced in the production of canned fruits contains organic matters such as sugar, organic acid, pectin, acid, alkali, etc. if it is directly discharged into the natural water body without treatment,…
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Slaughterhouse Wastewater Treatment

Application of Johnson screen filter (wedge wire screen) in slaughterhouse (pig, sheep, cow, fish, etc.). Natural water resources are scarce. Almost all water used in slaughterhouses is precious tap water, which increases production costs and the total amount of sewage and waste water. Recycling most of the slaughterhouse wastewater after reuse can alleviate the shortage of…
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How to treat electroplating wastewater?

Johnson Screen For Electroplating Wastewater Treatment Electroplating wastewater is one of the industrial wastewater with wide sources and great pollution.  There are two ways for electroplating wastewater to pollute the environment: – Discharge of electroplating waste liquid with small quantity but high concentration. – Discharge of electroplating wastewater with relatively low concentration. Due to the dispersion…
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Wastewater Treatment Methods of Oil And Fat Industry

For the treatment technology of oil-bearing industrial sewage, domestic and foreign research institutions have been unremitting in-depth research and discussion, summed up its technical route is to remove a large number of oil in the water while taking into account the removal of organic matter, suspended matter, soap, acid and alkali, sulfide, ammonia nitrogen and…
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Sludge Treatment Technology of Pig Farm Wastewater

The main waste water for raising pigs mainly comes from a series of waste water discharged during the raising process. The main characteristics of the waste water are as follows: The concentrations of suspended solids and organic pollutants are high, and a certain amount of hair and feces are discharged in the feeding process. These contents…
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The Treatment Method of Preserves Wastewater

Johnson Screen For Preserves Wastewater Treatment Preserves is a kind of licorice cold product with various fresh fruit (green) as the main raw material, which is a kind of food deeply loved by people. The waste water, juice and sugar liquid produced in the process of preserves are often poured out as waste water. The waste water is…
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Boiler Wastewater Treatment

Johnson Screen For Boiler Wastewater In industry, it is still the main use to generate electricity and heat by boiler. A large amount of water slag will be produced in the operation of the boiler. If the water slag of the boiler is discharged out of the boiler irregularly, the boiler pipe will also be…
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Wastewater Treatment Technology Of Pharmaceutical Factory

JOHNSON SCREEN For Pharmaceutical Factory Pharmaceutical wastewater has gradually become one of the important pollution sources. Because of its complex composition, high organic content, high toxicity, deep color and high salt content, especially its poor biochemical property and intermittent discharge, compared with the wastewater from coal industry, it is more difficult to treat. The production…
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How to choose sludge dewatering equipment?

Johnson Screen For Spiral Sludge Dewatering Machine Belt Filter Press The belt dehydrator is composed of two tensioned filter belts with sludge layer, passing through a series of regularly arranged roller cylinders in S shape, depending on the tension of the filter belt itself to form the squeezing and shearing force on the sludge layer, the…
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Wastewater Treatment Of Coal Chemical Industry

Johnson Screen For Coal Chemical Industry At present, the development of coal chemical industry mainly includes three industrial chains: coal coking, coal gasification and coal liquefaction. According to this, coal chemical industry wastewater can be divided into three categories: coking wastewater, coal gasification wastewater and coal liquefaction wastewater. Pretreatment biochemical treatment advanced treatment high salt…
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Resin Trap Filter For Mixed Bed

Johnson Screen Resin Trap Filter For Mixed BedThere are two aspects to this article: Introduction to mixed bed Johnson screen resin trap filter Mixed Bed The mixed bed adopts a fixed bed exchange process, it is composed of upper water inlet device, middle drainage device, lower porous plate, water retaining plate, filter cloth layer, valve…
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