The tiny particles of black volcanic stone are a kind of natural porous rock material, mainly compos
Porous structure: Micro-pores range from micrometers to millimeters in size, with a large specific surface area and strong adsorption capacity, capable of removing ammonia nitrogen, heavy metals and organic substances.
Chemical stability: Resistant to acids and alkalis, non-radioactive, environmentally friendly and safe, suitable for aquarium, horticulture, construction and other fields.
Biocompatibility: The positive charge on the surface is prone to attach to microorganisms and serves as a carrier for beneficial bacteria such as nitrifying bacteria, promoting water purification and plant growth.
Specification selection:
Aquarium filtration: Prioritizes 3-6mm particles, taking into account both adsorption and water flow permeability.
Gardening surface: It is recommended to use 5-8mm particles to avoid dust affecting plants.
Industrial filter media: Select a particle size of 10-20mm or 20-30mm based on processing requirements to balance the biofilm formation amount and backwashing effect.
Quality identification:
High-quality products should have uniform particles and no obvious dust. After soaking in water, the water quality should be clear and the pH value should be stable between 6.5 and 7.5.
It is recommended to choose suppliers that have passed the CMA/CNAS certification to ensure that the content of heavy metals complies with national standards
Pretreatment method:
Newly purchased volcanic stones should be rinsed with clean water 2 to 3 times to remove surface dust and prevent clogging of filter materials or affecting soil aeration.
When used in aquariums, it is recommended to lay them in layers in the filter tank (with coarse particles at the bottom and fine particles on top) to enhance the filtration efficiency
Volcanic rock particles are used in sewage treatment plants. Volcanic rock particles have the characteristics of large specific surface area, high porosity and good chemical stability. They can be used as biological filter materials in sewage treatment, providing a place for the growth and reproduction of microorganisms and promoting the decomposition and removal of pollutants. It can also play a filtering and adsorption role, removing suspended solids and some harmful substances in sewage.
is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof ,“breathing function”.
The tiny particles of black volcanic stone are a kind of natural porous rock material, mainly compos
is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof ,“breathing function”.
Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbi
Lava stone is formed when the lava stream flows and cools down with the air remains and becomes small holes in the final rock. Lava stone owe the special features such as sound absorbing and insulation,heat absorbing and preservation,water absorbing and slide –proof,acid & alkali proof .
