Carbon steel or stainless steel and FRP filters

Carbon steel or stainless steel and FRPfilters

Introduction:

Quartz filter: It uses quartz sand as the filter medium. Under a certainpressure, the turbidity water is filtered through a certain thickness of granularor non-granular quartz sand to effectively remove suspended solids andorganic matter in the water. Colloidal particles, microorganisms, chlorine, odorand some heavy metal ions, etc., finally achieve a high-efficiency filtrationequipment that reduces water turbidity and purifies water quality. 

Activated carbon filter is a commonly used water treatment equipment. Asa pretreatment of the water treatment desalination system, it can absorbtheresidual chlorine that cannot be removed in the pre-stage filtration, whichcaneffectively ensure the service life of the latter equipment, improve the qualityofthe effluent and prevent pollution, especially Prevent the residual chlorinetoxiccontamination of the reverse osmosis membrane, ion exchange resin, etc. Atthe same time, it also adsorbs pollutants such as small molecules and organicsubstances leaking from the former stage, and has obvious adsorptionandremoval effects on odor, colloid and pigment, heavy metal ions, etc., andalsohas the effect of reducing COD. The SDI value of the RO feed water canbefurther reduced to ensure SDI < 5 and TOC < 2.0 ppm.

Iron and manganese exist almost simultaneously in underground(well)water. When the iron content in the water is high, the water has ironiness, which affects the taste of water. As a production water for papermaking, textile, printing and dyeing, chemical and leather, it will lower the product. The qualityand iron content can cause rust spots on the production equipment. Yelloworbrownish yellow spots will appear on the washing clothes. The iron depositFe2O3 will breed iron bacteria, block the pipeline, and sometimes redwaterwill appear. The water with higher manganese content is similar to the caseofhigh iron content. For example, the color, smell and taste of water damagethequality of industrial products such as textile, paper making, brewing, food, etc. Household appliances may be polluted into brown or black. There will beslightblack or light gray stains on the laundry. To this end, China's "StandardsforDrinking Water Hygiene" (GB5749-85) stipulates that iron content ≤0.3mg/L, manganese content ≤ 0.1mg / L, raw water exceeding the standardmustbe treated by iron and manganese removal. Drinking iron with too muchironand manganese content for a long time will seriously affect your healthandhave strong corrosion resistance to production equipment