Dogs that spend time at daycares or groomers are often required to have this. The acronyms, DHPP, DHLPP, DA2PP-L, DA2PP-C, often appear on our dogsâ summary report of vaccines. These acronyms stand for a combination of vaccines that protect against serious viruses. DHPP stands for Distemper, Hepatitis, Parvovirus, Parainfluenza. DHLPP is the same as DHPP with the additional vaccine for Leptrospirosis. DA2PP-L stands for Distemper, Adenovirus, Parvovirus, Parainfluenza, and Leptospirosis.
Adsorption is the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to a surface. This process creates a film of the adsorbate on the surface of the adsorbent.
Physical adsorption is the primary means by which activated carbon works to remove contaminants from liquid or vapor streams. Carbon's large surface area per unit weight allows for contaminants to adhere to the activated carbon media.he carbon-based material is converted to activated carbon through physical modification and thermal decomposition in a furnace, under a controlled atmosphere and temperature. The finished product has a large surface area per unit volume and a network of submicroscopic pores where adsorption takes place.