Characteristics of the volcanic rocks

The volcanic rocks

Volcanic rocks are functional environmental materials, and are precious porous stone materials made from the volcanic glasses, minerals and bubbles. The volcanic rocks contain silicon, aluminum, calcium, sodium, magnesium, titanium, manganese, iron, nickel, cobalt and molybdenum and have far infrared ray and no radiation. The materials are widely used in architecture, water conservancy, grinding, filtering material, barbecue, gardening, soilless culture and art, etc.

The characteristics of the volcanic rocks (Basalts).

Physical Structure

Structure: smooth granular, small resistance, blockless, good distribution of the water and the bubbles, forming quickly and sticking toughly of the membranes.

Porous: the volcanic rocks have natural honeycomb structures, and are suitable for the growth of the zoogloea.

Mechanical strength: authority data is 5.08Mpa, and they can stand up different strength of the hydraulic shear stress, and they will be used for a longer time than the other filtering materials under the same conditions.

PH value is 6.5, and neutral, a little weak acidity.

Chemical characteristics of the volcanic rock biological filtering materials

Chemical compositions: SiO2 CaO MgO Fe2O3 FeO Al2O3 TiO2 K2O Na2O

Content: % 53.82 8.36 2.46 9.08 1.12 16.89 0.06 2.30 2.55

Stability: the volcanic rock biological filtering materials with corrosion resistance are too inert to react with the tiny organisms;

Activity: the electrical property and hydrophilicity of the surface: there are positive charges on the surfaces of the volcanic rock biological filtering materials, which are suitable for the tiny organisms to fix; the attached tiny organisms grow fast and the surfaces have good hydrophilicity;

Reaction: effect on the activity of the biological membrane: As the carriers of the biological membrane, the volcanic rock biological filtering materials are not harmful and no inhibitive to the activity of the tiny organisms fixing on them. Basalts are weather-resistant and durable; Basalts with sound absorbance and insulating are good to improve the sound ambiance; Green basalts can improve the visual ambiance; the materials with heat absorption and storage, water-absorbance and skid-resistance, are suitable to improve the human feeling.

The volcanic rocks in the aquariums

Activating the water

The volcanic rocks can activate the ions in the water and release the trace a ray and infrared ray, which are good to fishes and human bodies. The disinfection functions of the volcanic rocks can prevent and cure the diseases.

Stabilizing the water

The volcanic rocks can adjust the PH value to the neutral to retain the PH stability and the level of contents of the minerals by releasing the minerals and absorbing the waste, which are important when the Cichlasoma spp changes color and grows the horn.

Color changing

The volcanic rocks are colorful, which is good for the color-changing of the goldfishes such as cichlasoma spp, red horsehead, parrot fish and red arowana. A characteristic of the cichlasoma spp is that its color will change to the color of the close object, so the red volcanic rocks will make the cichlasoma spp change to red.

Adsorption

The volcanic rocks are porous, and have large surface areas, which can absorb the harmful bacteria and heavy metal such as chromium and arsenic, etc, even some residual chlorine. The volcanic rocks in the aquarium can filter the residues and feces to keep the water clean.

Playing

Most fishes especially the Cichlasoma spp are not gregarious, and they like to build their own homes, so the light volcanic rocks are the best things for their play.

Improving the metabolism of the animal cells

The microelements from the volcanic rocks can improve the metabolism of the animal cells, and clean the poisonous halide and waste of the cells

Growth

The volcanic rocks can improve the protein synthesis level and the immunocompetence of the animals, which improve the activities of the Cichlasoma spp, especially at the horn period.

Cultivating the nitrobacteria

High surface areas of the rocks are good hotbeds for the growth of the nitrobacteria, and there are positive charges on the surfaces of the volcanic rocks, which are suitable for the growth of the tiny organisms. And the rocks can change the poisonous NO2 and NH4 to the innocuous NO3 in the water.

The fertilizer materials for the water plants

The volcanic rocks are suitable for the growth of the water plants, and the minerals from the rocks supply both the fishes and the water plants with the fertilizer materials. In the agriculture, the volcanic rocks are used as the bases of the soulless culture, fertilizer materials and the additives of the animal feeds.