Walnut in shells

Walnut shell filter/abrasive

The nut shell filter material is made of high-quality pecan shells, which are crushed, polished, steamed, washed, and treated with antiseptic drugs, and then screened and processed twice. This filter material is tough, wear-resistant, compressive (anti-pressure 23.4kgf), stable chemical performance, strong adsorption and dirt interception (absorption rate 27-50%), anti-oil leaching, easy backwashing and regeneration, low backwashing strength (6.7L/Sm2), fast filtration rate (24-26m/h), no compaction, no decay, never replace, only need to supplement 5-10% every year. The oil removal rate is 95%, and the oil content is reduced to less than 5mg/g. Suitable for oil fields, fuel-saving and environmental protection equipment, etc.
  Walnut shell filter material is a kind of granular filter material processed by degreasing, crushing, sieving, etc., with many micropores on the surface and good adsorption effect. The product has been tested by Beijing Forestry University, Shandong Academy of Sciences Test Center, and Jiangsu Environmental Protection Research Institute. The performance and indicators are as follows:

  (1) Strong compressive capacity Walnut shell particles with a particle size of 1.25-1.60mm have an average compressive limit of 0.2295KN (23.40kgf). Walnut shell particles with a particle size of 0.80-1.00mm have an average compressive limit of 0.165KN (16.84kgf).

(2) The chemical property is stable, does not contain toxic substances, and the amount of dissolution in acid, alkali, and water is very small. The loss of walnut shell in hydrochloric acid solution is 4.99%, and the loss rate in sodium hydroxide solution is 3.8%. Cause deterioration of water quality.
  Main markets: The above products are widely used in oil fields, chemicals, metallurgy, thermal power, printing and dyeing, papermaking, wine making, tanning and other industrial sewage treatment and urban water supply and drainage projects. They are the most ideal water purification filter materials for various filters.