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The similarities and differences between quartz sand filters and shallow sand filters
Author: Site Editor Publish Time: 2023-09-25 Origin: Site
Quartz sand filters and shallow sand filters are commonly used water treatment equipment. They have the following similarities:
1.The filtration principle is the same: industrial sand filter and sand media filter both use filter media to remove suspended solids, suspended liquids, organic matter, microorganisms and other impurities in the water, thereby improving water transparency and quality.
2. Similar structures: The structures of water tank sand filter and media sand filter are relatively simple, generally consisting of a filter media layer, an inlet pipe, an outlet pipe, a control valve, etc.
3. The operation mode is the same: both the industrial sand filter water treatment and the multimedia sand filter send water into the filter media layer for filtration through a water pump or gravity flow, and then discharge the filtered water through the outlet pipe.
4. The applicable occasions are the same: both industrial water sand filters and sand media filtration are suitable for the field of water treatment, and can be used in industrial water treatment, agricultural water treatment, drinking water treatment and other occasions.
Although quartz sand filters and shallow sand filters have the above similarities, there are also certain differences in filter media, filtration speed, filtration effect, maintenance cost and scope of application. Their main differences are as follows:
1. Different filter media:
Industrialsand filtration tank usually use finer quartz sand as filter media, with particle sizes ranging from 0.5 to 1.2 mm. This filter is mainly used to remove suspended solids, bacteria, viruses and other tiny particulate matter in the water to improve water transparency and hygiene.
Multi media sand filter use coarser sand as the filter media, with particle sizes ranging from 0.8 to 2 mm. This filter is mainly used to remove particulate matter, organic matter, etc. from water to improve the taste and smell of water. In addition, shallow sand filters can also be used to remove metal ions such as iron and manganese from water.
2. Different filtration speeds:
The filtration speed of quartz sand filter is faster than that of shallow sand filter, which can reach a speed of 10-40 meters per hour, while the filtration speed of shallow sand filter is generally between 5-10 meters per hour.
This is because the sand particles of the sand filter water tank are relatively small, the filtering area is large, and the resistance when water passes through is small, so it can quickly filter impurities in the water. The sand particles of media sand filter are relatively large, the filtering area is small, and the resistance when water passes through is large, so the filtration speed is relatively slow.
3. Different filtration effects:
Because industrial sand filter use finer filter media, they can filter out smaller impurities and microorganisms and have better filtration effects. The sand media filter has a relatively poor filtration effect and can only filter out larger impurities and microorganisms.
4. Different Maintenance costs:
The maintenance cost of industrial sand filter water treatment is relatively high because quartz sand is more expensive and replacement of quartz sand requires more time and manpower. Multimedia sand filter, on the other hand, have lower maintenance costs because the sand is less expensive and relatively easy to replace.
2.5 Different application scopes:
Auto backwash sand filter are suitable for high-demand water treatment fields, such as industrial water, drinking water, etc.; while sand media filter for drip irrigation are more suitable for general tap water, agricultural irrigation and other fields.
To sum up, the industrial water sand filter has better filtration effect, but the maintenance cost is higher, and the scope of application is wider; while the sand media filtration has relatively poor filtration effect, but the maintenance cost is lower, and the scope of application is relatively wider. Narrow. Which filter you choose should be determined based on your specific water treatment needs and budget.
The above article explains the similarities between quartz sand filters and shallow sand filters through the four aspects of the same filtration principle, similar structure, same operating method, and the same applicable scenarios; The differences between quartz sand filters and shallow sand filters are briefly discussed through the five aspects of different filter media, different filtration speeds, different filtration effects, different maintenance costs, and different application scopes.