溫縣宏達凈水材料廠生產的錳砂濾料是采用國內質量優良、晶粒致密、機械強度大、化學活性強、不易破碎、不溶於水的天然錳礦砂。經水洗打磨除雜、乾燥、磁選、篩分、除塵等工藝成砂。再把加工好的錳砂按一定的級配調合而成。它具有水處理濾

料最理想的級配比例，使它在單位體積內有最大的比表麵積、最強的截污能力、最大的氧化催化作用和最小的反沖洗流失率。錳砂濾料外觀粗糙呈褐色或淡灰色，常用於生活飲用水的除鐵、除錳過濾裝置，濾水效果非常良好。（註：MnO2≥35%既可除鐵，又能除錳，MnO2≤30%）隻能用於地下水除鐵）錳砂濾料主要用於降低水中的鐵錳鐵和錳總含量，根據我國生活飲用水衛生標準規其鐵含量≤0.3㎎/L，錳含量≤0.1㎎/L，長時間飲用含鐵含錳量過高的水會嚴重影響身體健康

鐵以Fe2+的狀態曾於地下（井）水中，其水有異色異味，污染離子交換樹脂而降低交換能力，長時間後生成鐵垢，影響傳熱，能腐蝕設備。而錳砂中的MnO2與Fe2+發生氧化還原反應，使Fe2+變為Fe3+並生成 Fe(OH)3沉淀，從而利用錳砂過濾器的反沖洗功能達到去除凈化的目的。

　　用於地下水除鐵和除錳的天然錳砂濾料，其錳的形態應以氧化錳為主。含錳量（以MnO2計，下同）不應小於35%的天然錳砂濾料，既可用於地下水除鐵，又可用於地下水除錳；含錳量為20%～30%的天然錳砂濾料，隻宜用於地下水除鐵；含錳量小於20%的錳礦砂則不宜采用。宜優先采用經過科學試驗或生產使用證明能獲得良好除鐵和除錳效果的天然錳砂品種作濾料。

　　1.天然錳砂濾料的平均密度一般為3.2g/cm3至3.6g/cm3范圍內。使用中對密度有特殊要求者除外。

　　2.天然錳砂濾料的鹽酸可溶率不應大於3.5%（百分率按質量計，下同）。

　　3.天然錳砂濾料的破碎率和磨損率之和不應大於3%。

　　4.天然錳砂濾料應不含肉眼可見泥土、頁巖和外來碎屑，含泥量不應大於2.5%。

5.濾料的水浸出液應不含對人體有毒、有害物質。

　　錳砂濾料常用規格：0.25-0.5mm 0.5-0.8mm 0.8-2.0mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 8.0-16mm特殊規格可根據用戶需求另行加工。

　　錳砂濾料用途

　　天然錳砂除鐵是一種接觸催化除鐵工藝，適合於地下水含鐵量小於20mg/L的除鐵。天然錳砂中含的高價錳能將水中的二價鐵氧化成三價鐵，同時在表麵形成有催化作用的“活性濾膜”，進一步提高瞭除鐵效果。含鐵水經曝氣後，隻經天然錳砂一次過濾，就能完成全部除鐵過程。

　　錳砂含量的選用。

　　在除鐵錳濾池中運行時，水中低價鐵錳離子先被覆合錳砂濾膜吸附，然後被氧化和水解，生成氫氧化物水合分子[Fe(OH)3XH2O] 和[Mn(OH)nXH2O] 形成的活性濾膜，並作為新的催化劑參與接觸氧化反應，使活性濾膜有隨著使用增厚的趨勢，形成瞭覆合錳砂的自修復特性,使用一年的覆合錳砂，錳含量增加18.2%，鐵含量增加4.8%；使用兩年半的錳含量增加瞭27.3%，鐵含量增加14.3%.錳砂容重較低(為1.55～1.60g/cm3)，特別適用於大中型水廠的虹吸除鐵錳濾池和各型除鐵錳濾罐 虹吸濾池由於反沖洗水頭較低，往往不宜於使用容重較大的天然錳砂濾料（其容重一般為2.2～2.4g/cm3），使大中型水廠除鐵錳濾池的設計使用受到一定限制。

天然錳砂池他的反沖洗時間一般為5-15分鐘。天然錳砂 池料表麵的“活性濾膜“結構比較硫松，能在長時間的沖洗中破壞， 所以濾池的反沖洗應以不破壞濾料表麵的“活性論膜”為度。 否期會引起濾後水質嚴重惡化，在地下水除鐵濾池中，應采用不易為鐵質堵塞 的 配水系統形式。推薦采用上設承托層的管式大阻力配水系統和格 栩式或孔板式小阻力配水系統。

HTC Wenxian County water purification material factory production of manganese sand filter is used domestic excellent quality, grain density, high mechanical strength, strong chemical activity, not broken, do not dissolve in water natural manganese sand. After washing, drying, grinding impurity separation, screening, dust and other technology into sand. The processing of manganese sand according to certain gradation and mixing. It has a water treatment filter
Material the most ideal gradation proportion, to make it in the unit volume has the largest surface area, most of the sewage interception capacity, maximal oxidative catalysis and minimal backwash erosion rate. Manganese sand filter appearance of rough brown or light gray, commonly used in drinking water in addition to iron, and manganese filter, water filter effect is very good. ( Note: MnO2 = 35% can be in addition to iron, and manganese, MnO2 < 30% ) can only be used for groundwater in addition to iron ) manganese sand filter is mainly used for reducing water iron ferromanganese and manganese content, according to China's drinking water health standards of its iron content less than 0.3 / L, manganese content less than 0.1 / L, long time drinking iron manganese content in high water will seriously affect health
Iron with Fe2 + state in underground ( water well ), its water with Harmonia odor, ion exchange resin polluted and reduce the exchange capacity, long time after the formation of iron scale, the effects of heat, can corrode equipment. Manganese sand in MnO2 and Fe2 + redox reactions occur, the Fe2 + to Fe3 + and Fe ( OH ) 3 precipitation, thus the use of manganese sand filter backwashing function to remove the purpose of purification.
For groundwater in addition to iron and manganese removal of natural manganese sand filter, its forms of manganese in manganese oxide mainly. Manganese content (MnO2, similarly hereinafter ) shall not be less than 35% of natural manganese sand filter, which can be used for groundwater in addition to iron, and can be used for underground manganese; manganese content of 20% ~ 30% of natural manganese sand filter, should be used only for groundwater in addition to iron; manganese content in manganese ore should not be less than 20% using. Should preferably be adopted a scientific experiment or production that can obtain good removal of iron and manganese removal effect of natural manganese sand varieties as filter media.
1 natural manganese sand filter average density is 3.2g / cm3 to 3.6g / cm3 range. The use of density with special requirements.
2 natural manganese sand filter hydrochloric acid soluble ratio should not exceed 3.5% ( percentage by weight, similarly hereinafter ).
3 natural manganese sand filter crushing rate and the wear rate and should not be greater than 3%.
4 natural manganese sand filter shall be free of visible dirt, shale and foreign debris, mud content should not be greater than 2.5%.
The 5 filter water leaching solution should not contain toxic, harmful substances on the human body.
Manganese sand filter commonly used specifications: 0.25-0.5mm 0.5-0.8mm 0.8-2.0mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 8.0-16mm special specifications can be based on user needs further processing.
Manganese sand filter use
Natural manganese sand iron removal is a contact catalytic iron removal process, suitable for groundwater containing iron content of less than 20mg / L fe. Natural manganese sand containing high valent manganese can remove divalent trivalent iron ferrite formation, at the same time in the surface form a catalytic activity " membrane", to further improve the effect of removing iron. Containing molten iron by aeration, only by natural manganese sand a filter, will be able to complete all the process of iron removal.
Manganese sand content selection.
In addition to iron and manganese filter operation, the water price of iron and manganese ions in manganese sand filter adsorption first coating, and then by oxidation and hydrolysis, generated hydroxide hydrated molecule [ Fe ( OH ) 3XH2O] and [ Mn ( OH ) nXH2O] form of the active filter, and as new catalyst in contact oxidation reaction, the activity membrane has with the use of thickening of the trend, forming a composite manganese sand self repairing characteristics, use a year covering manganese sand, manganese content increased by 18.2%, iron content increased by 4.8%; the use of two and a half years of manganese content increased by 27.3%, iron content increased 14.3%. Manganese sand low density ( 1.55 - 1.60g / cm3 ), is particularly applicable to large and medium-sized water siphon iron and manganese removal filter and various types of iron and manganese removal filter siphon filter backwash water due to lower bulk density, tend to be used more natural manganese sand filter ( its density is generally 2.2 ~ 2.4G / cm3 ), make large and medium-sized water iron and manganese removal filter design limited.
Natural manganese sand pool his backwashing time for general 5-15 minutes. Natural manganese sand pool material surface active membrane structure"" comparison of sulfur release, in a long time of flushing damage, so the filter backwash should not damage the surface of the filter material" activity on the film" for the degree. No time will cause the filter after the serious deterioration of water quality, the groundwater in addition to iron in the filter should be used for iron, not easy blockage of the water distribution system form. Recommend the use of a supporting layer tube type large resistance water distribution system and grid Xu type or orifice plate small resistance water distribution system.

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