1. Product Introduction

Anthracite filter media is a commonly used shallow depth filtration material in the domestic water treatment industry. Made from high-purity, high-quality anthracite as raw material, it is artificially selected, repeatedly crushed, sifted, dust-washed, and dried to refine. The product is black, multi-angled granules with hard texture, stable structure, and high porosity, serving as the core underlayer filter material for double-layer, triple-layer filter beds, and mechanical filters. It has inert chemical properties, resistant to acid and alkali, non-dissolving, non-corrosive, and does not crumble or release impurities when soaked in water for a long time. It is suitable for various domestic water, industrial wastewater, and recirculating water filtration systems and is the preferred upper filter material for quartz sand.

2. Product Material

Selected high-carbon anthracite coal, free from impurities such as gangue, soil, and other contaminants, and processed through high-temperature purification. Core indicators: Fixed carbon content ≥ 85%, extremely low ash content, acid solubility ≤ 3.5%, silt content ≤ 4%, high mechanical strength, wear-resistant and pressure-resistant, fully compliant with the national standard GB/T 43-2005 "Anthracite Filter Material for Water Treatment."

3. Common Specifications and Model (Particle Size)

• Standard General Models: 0.5–1.0mm, 0.8–1.2mm, 1.0–1.8mm, 1.2–2.0mm

•Double-layer Filter Pool Specific: 0.8–1.8mm

• Designed for 3-layer filter pool: 0.8–1.6mm

• High flow industrial filtration: 2.0–4.0mm

Packaging: 25kg/bag, 50kg/bag, customizable sieve accuracy, dust-free, even particle size.

4. Product Advantages and Features

•High filtration accuracy and strong dirt trapping ability: rich in particle edges, with a porosity of up to 45%-50%, the pore structure is reasonable, capable of trapping a large amount of suspended matter, colloids, and silt impurities in water, far exceeding the adsorption capacity of ordinary filter materials.

• Extremely stable physical and chemical properties: Resistant to acidity, alkalinity, and corrosion; does not dissolve, decompose, or release harmful substances in neutral, weak acid, or weak alkaline water quality; does not alter the water's pH.

• High hardness, non-caking, low loss: high mechanical strength, not easily broken during backwashing or water flow, no powder generation, not prone to clogging filter layers, long service life.

• Excellent stratification effect, compatible with multi-layer filtration: lighter than quartz sand, naturally stratifies during filtration; the upper layer of anthracite intercepts large particles, while the lower layer of quartz sand provides fine filtration, significantly enhancing overall filtration efficiency.

High cost-performance and simple maintenance: abundant supply, low prices, no need for frequent replacement; only regular backwashing is required, with extremely low maintenance costs.

•Safe and non-toxic, compliant with standards: No heavy metal leaching, no residue pollution, suitable for tap water and drinking water purification scenarios.

5. Core Functions

• Suspended Solids Interception Filtration: Efficiently retains silt, floating debris, flocculent matter, and suspended impurities in water, reducing the SS turbidity of the water body.

• Clarify Water Quality: Improve water turbidity, enhance water clarity, and purify preliminary water quality.

•Protect lower filter material: As the upper coarse filter layer, intercept large particle pollutants, prevent quartz sand and activated carbon filter layers from clogging, and extend the service life of the entire filter material set.

• Preliminary Water Purification: Assists in adsorbing a small amount of organic matter and unusual colors/odors, stabilizing water quality indicators.

Uniform water and air distribution: Regular particle structure ensures even distribution of water and air flow, avoiding local short-circuiting and uneven flow.

6. Recommended Uses

Water purification and filtration for waterworks, industrial circulating water filtration, power plant and chemical plant water treatment, sewage treatment plant deep filtration, mechanical filters, pressure vessel filtration, double/triple layer filter bed filling, water pretreatment for dyeing/Papermaking/ferrous metallurgy industries, swimming pool water recirculation and purification.