Chaoyang volcanic rock | black volcanic rock | Pengcheng filter

 Volcanic eruption volcano refers ground hot gases, liquids and solids fall to the ground and then piled up the hill of different shapes, due to the eruption of magma erupted when gas residue, solid magma, temperature and pressure decreased rapidly occurred chemistry changes and physical changes, it becomes a volcanic magma. fault some changes in the earth's crust when magma magma formed slowly penetrated the crust, slowly cooled to form rock, geologists estimated to be 2 km thick magma crystallized against the whole takes about 6400 years, and the rock base for the flower rock, lava crust quickly ejected ground altitude, and then down the ground temperature drops rapidly. One meter thick lava 12 days all the crystals to form in the ejected magma temperature, pressure suddenly yield conditions, resulting in the melting of volatile gases in the formation of large magma to escape the volcanic formation pore-like structure, that black hole known as honeycomb stone stone . Black hole volcanic stone (cellular Stone) sawn plate into light gray color with black matte mill, such as ground smooth sheet of pure black, black hole stone plates of various thicknesses can be processed in the interior walls of ancient defense wall fence fence Capping the horizon with the landscape. Black hole volcanic stone (cellular Stone) Origin Hainan Maritime mainly magmatic intrusion into the ground regardless of black volcanic rock, or discharged to the surface, there are clear boundaries between them and the surrounding rock. If the magma along bedding or foliation and other gaps invasion, often forming a similar rock basin, the contact surface bedrock, such as the shape of the cap rock intrusions, they are basically rock and bedding, foliation parallel, in geology called integrated intrusion; rationale if not intrusive magma along bedding or sheets, but through reason or around the rock foliation fracture, fractured volcanic particle penetration, intrusion formed this situation is called unconformity intrusion body. People often say rock wall is almost vertical rock through a plate-like intrusions, thickness typically tens of centimeters to tens of meters in length from tens of meters to tens of kilometers, or even hundreds of kilometers. Volcanic biological filter sewage treatment biofilm wastewater treatment processes widely used in small-scale decentralized wastewater treatment, activated sludge process than an advantage, embodied in: ① microbial phase, the various processes involved in biofilm purification reaction microbial diversity, microbial food chain longer and longer generation time of microbes easy to survive in the operation of each segment are able to form a dominant strain; ② Volcanic filter on treatment process, a variety of biofilm processes on water quality Water changes have strong adaptability, good sludge settling performance, easy-liquid separation, capable of handling low concentrations of sewage, easy maintenance, energy saving. Large specific surface area: fillers generally used in large surface area and high porosity porous openings inert filter, this filter is conducive to microbial biofilm exposure and growth, maintain more microbial biomass; beneficial microorganisms in the metabolic process Oxidation and nutrients needed and mass transfer processes metabolic waste generated; mechanical strength: biological filler must have a role in water conservancy shear strength and friction between different media damaged during the collision of low mechanical strength requirements. The hardness can preferably be used in the filter during filtration even years can still maintain its original size and shape; wear resistance: the filter must have a high corrosion resistance, so that the filter can be reduced in the backwash Late or wear less biofilm when; porosity and surface roughness: Requires filter has a certain porosity and roughness in favor microbial attachment, growth, and most importantly, meaning that: reduce filter backwash process in due to friction caused by the collision between the filter membrane sessile microorganisms excess shedding, to ensure that the work of the early biological filter cycle (rinse after) the basic requirements of biomass to water quality is relatively stable. Biological, chemical stability: biofilms in the metabolic process will produce a variety of metabolites, some metabolites may have a corrosive effect on the media, so the biological filter must have a certain chemical stability and corrosion resistance, while the need does not participate in the biofilm biochemical reactions, and which are not themselves be biodegradable. Chaoyang volcanic rock | black volcanic rock | Pengcheng Pengcheng filter provided by the media. Welcome to consult Henan Pengcheng media Ltd. (www.pclcgs.com), be sure to specify when the contact is through the "Business Alliance members" see, thank you! Contact: Wu steady Week