First Class electrolytic manganese metal (EMM) 99.7% in low price

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Product Description:


90%carbon content 1-2,2-4mm calcined anthracite 


Description of anthracite filter media

Anthracite is a kind of filter used in water treatment. It is suitable for the treatment of common acid, the middle degree alkali. This product has large surface area, and its various indexes all exceed the Construction Department’s standard. Anthracite filter is especially selected from the deep well minerals, so it includes the highest percentage of carbo. It must have been filtered and washed to make sure it can be used for water filting. Since it has better granular maintaining ability, so it can improve the floating granular’s cleaning ability.

Uses of anthracite filter media

Useful in general acid, in alkaline water purification treatment, is a double, three water purification filter indispensable materials, various technical indicators have reached and exceeded the Ministry of Construction (CJ/T44-1999) standard.

Specifications of walnut shell filter media



Test Results


Bulk density


Effective Size(mm)


       Uniformity coefficien(max)


         Specific Gravity




1. Longer Filter Runs

2. Faster Filtration

3. Long Lifetime

4. Good Separation Characteristics
5. Savings water and power in washing


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Q:Basement cushion waterproof
Second, when the design of the highest groundwater level above the bottom of the basement floor, you must do waterproofing. As the waterproof waterproof effect is good, so the application of more. Internal waterproofing is generally used for repair works.
Q:Maintenance time of the cushion on the roof of the building
According to the "concrete structure construction quality acceptance criteria" provides: Concrete should be poured within 12h after the completion of the concrete to be covered, and moisturizing conservation;
Q:Is it possible to make a waterproof layer
1, to do after the dry do, or prone to the phenomenon of wall skin off.
Q:Foam concrete for the roof cushion generally do much bulk ah
in recent years, the density of 160kg / m3 ultra-light foam concrete is also used in construction projects.
Q:Is the raft cushion waterproofing full of the cushion?
The request is full. Raft foundation do not do waterproof mainly depends on the design of the groundwater level considerations, calculated if the floor itself to meet the requirements, you can not do, and not rigid to do.
Q:Can the floor tiles be removed from the cement mats on the prefabricated board floor?
Prefabricated board floor layer of cement layer is not called the cushion, should be called leveling layer, this layer can be eradicated, but should pay attention not to damage.
Q:Is foam concrete suitable for use as a cushion?
Inappropriate. Bubble concrete is a new type of energy-saving and environmentally friendly building materials, which are widely used in wall materials, but there are still some defects, such as low strength, cracking, water absorption, as the cushion of its strength is not enough standard.
Q:Why calculate the amount of time to count a lot of cushion ah
It can be seen, in the preparation of the project budget, the cushion is also a very important sub-head, the amount of its calculation is often measured by m3, the current commonly used materials are concrete, gravel, stone, Stone slag), slag, slag concrete, lime and so on.
Q:The top floor made waterproof playing cushion layer of how to do
2. repair the cracks well. After the cracks to be repaired are dry, start waterproofing.
Q:How to build a fine stone concrete cushion?
Reduce ground cracking, plus steel mesh. Reinforced mesh, should be placed in the middle of the concrete, because the protective layer of concrete thick Fang generally only 5CM thickness, so the middle is the best.

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