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What is the difference between a backwashing filter and a self-cleaning filter? The two have a large amount of water treatment? Backwashing refers to flushing the filter against a water flow that is close to saturation in the opposite direction of normal water flow,Can be manual cleaning,Can also be automatic cleaning.Self-cleaning filter refers to automatic cleaning,Generally, the automatic cleaning program is triggered according to the use time,The general cleaning method is backwashing.Different ranges,The backwashing filter belongs to a self-cleaning filter,Backwashing refers to the use of a small part of the product water to rinse the filter without interrupting the water production,Because it is called by product counterattack.The name of the self-cleaning filter is that the filter can be cleaned automatically,There are many types of these,For example, brush,High pressure,Self-priming,Backwashing, etc,Generally speaking,The anti-washing effect of high-pressure backwashing filter is good,There is a new
At room temperature, an element is formed into a powder-like solid, which is easy to melt. the element burns in oxygen and emits a blue-purple flame. 5 This element is sulfur,Sulfur burns blue and purple in oxygen,At normal temperature, it is a summary of powder junior high school chemistry. 1. chemistry is an experiment-based natural science that studies the composition, structure, nature and change law of substances.What physics and chemistry have in common: natural science based on experiments.2. the fundamental difference between chemical change and physical change is whether there are any new substances.Some phenomena such as heat release, light emission, discoloration, gas release and precipitation occur in chemical changes.3. physical properties--State, odor, melting point, boiling point, hardness, density, extensibility, solubility, volatility, conductivity, adsorption, etc.4. chemical properties--Oxidation, reduction, metal activity, activity, stability, corrosiveness, toxicity, etc.5. after heating
