This product is considered a waste product that is very valuable to process and use. To use walnut shell, it must be ground and granulated.Ground walnut skin is in the form of brown granules. The granulation is done according to the mill and the selected grain is determined in the mill. The size of walnut shell powder is divided into three sizes: fine, medium and course. The size of fine, medium and coarse particles are 0.2 to 1 mm, 1 to 3 mm and 3 to 4 mm, respectively.

Applications 

 Drilling fluid, One of the uses of ground walnut shell is to prevent oil wells from getting dirty along with other LCM materials or drilling mud. Walnut shell powder used for drilling mud should be in standard sizes of fine, medium and course.

The use of walnut skin in drilling mud causes its particles to be trapped inside the pores of the well wall and the pores of the well, which causes leakage, are closed.

Also, the use of walnut skin can help to clean the drill head.

Charcoal, Walnut shell powder is also used to make and produce charcoal. Usually, the walnut skin powder used for charcoal has a larger size and is used along with other impurities such as apricot skin and peanut.

The walnut shell powder used for charcoal does not need a precise size standard and a larger size powder is used.

Removing paint from boats and equipment

 This product is also used for skin health and in perfumes.