Overview
Perlite filter media is produced by heating volcanic perlite ore to 900°C, causing it to expand up to 20 times its original volume. This process creates a highly porous, lightweight structure ideal for filtration applications. The material is chemically inert, pH-neutral, and resistant to microbial growth, making it suitable for long-term use in water treatment systems. Its low density reduces backwash requirements compared to traditional sand filters.
Physical and Chemical Properties
Expanded perlite exhibits a bulk density of 30–150 kg/m³, with pore sizes ranging from 5–50 microns. Its surface area can reach 2–4 m²/g, providing effective particulate capture. Chemically, it consists of 70–75% silicon dioxide and 12–15% aluminum oxide, with trace amounts of other oxides. The material is non-combustible and stable up to 800°C, though filtration grades are typically used below 100°C.
Main Applications
In water treatment, perlite media removes suspended solids down to 1–5 microns, often replacing diatomaceous earth in pool and beverage industry filtration. Horticultural grades improve soil aeration and moisture retention. Industrial uses include oil/chemical spill absorption and as a lightweight filler in construction materials. Recent developments include coated perlite for heavy metal removal in wastewater treatment.
Safety and Storage
While non-hazardous, perlite dust requires NIOSH-approved N95 masks during bulk handling. Store in sealed bags or silos to prevent moisture absorption, which reduces filtration efficiency. Spent media from industrial applications may require special disposal if contaminated. Always comply with local regulations for used filtration materials.
B2B Procurement Guide
Key specifications to request include: particle size (typically 0.5–3 mm for filtration), expansion ratio (≥10:1 for optimal porosity), and soluble salt content (<0.5% for sensitive applications). Bulk purchases (20+ tons) often qualify for 10–15% discounts. Verify supplier certifications like ISO 9001 and request material safety data sheets (MSDS) for compliance documentation.
Related Manufacturers
- 主营：水处理材料、柱状活性炭、椰壳活性炭、珍珠岩、聚丙烯酰胺、絮凝剂
- 主营：鲍尔环、陶瓷鲍尔环、塑料鲍尔环、瓷砂滤料、轻瓷填料、泰勒花环、科斯特花环、海尔环、不锈钢矩鞍环、塑料填料、陶瓷填料、多面空心球、丝网填料、陶瓷拉西环、不锈钢拉西环、塑料拉西环、陶瓷阶梯环、塑料阶梯环、不锈钢阶梯环、孔板波纹填料、不锈钢丝网波纹填料、陶瓷矩鞍环、陶瓷异鞍环
- 主营：[]
- 主营：聚丙烯酰胺、聚合氯化铝、蜂窝活性炭、纤维滤料、粉末活性炭、椰壳活性炭、果壳活性炭、柱状活性炭、活性氧化铝球
- 主营：整体式蜂窝陶瓷蓄热体、板片式蜂窝陶瓷蓄热体、蜂窝沸石、稀土瓷砂滤料、催化剂
- 主营：斜管填料、滤砖、人工湿地填料、石英砂滤料、无烟煤滤料、混凝土滤板、网格絮凝器
- 主营：天然海沙、石英砂、活性炭、生物陶粒滤料、海砂滤料、石英砂滤料、鹅卵石滤料、锰砂、鹅卵石
- 主营：椰壳活性炭、果壳活性炭、煤质柱状活性炭、石英砂滤料、无烟煤滤料、生物陶粒滤料、天然海砂滤料、纤维球滤料、锰砂滤料、煤质颗粒活性炭、蜂窝活性炭、氧化铁脱硫剂、免焊接斜板填料、斜板填料、蜂窝斜管填料、侧向流斜板填料、絮凝网格填料、固定床平板填料、混凝土滤板、ABS整体浇筑滤板、S型滤砖、T型滤砖、活性炭翻板滤池U型滤管、可调节式长柄滤头
- 主营：[]
- 主营：油漆陶瓷原料、添加用硅酸铝粉、煅烧高岭土、珍珠岩、水洗高岭土、滑石粉、膨润土、黄陶土、红陶土、轻质碳酸钙、重质碳酸钙、铝矾土、重晶石粉、石英砂、沸石粉、海泡石
- 主营：高岭土系列、石英系列、石棉纤维系列、珍珠岩、海泡石系列、悬浮剂增稠剂系列、耐火材料系列、氧化铁颜料系列、碳酸钙系列、陶土系列、橡胶粉系列、硅藻土、火山石、汇算镁铝、粉煤灰、硅灰、矿粉、介质棉、红土、石英砂、硅线石、蓝晶石、蛭石、脱膜粉、硅酸铝
- 主营：鹅卵石、水洗石、白石子、珍珠岩粉、玻璃砂、火山石、蛭石、雨花石、灰色石子、黑色砾石、黑色石子、圆粒砂、海沙、白沙子、粉煤灰、高岭土、膨润土、沸石粉、贝壳粉、白云石粉、硅酸铝粉、硅酸铝纤维、硅灰、碳酸钙、金刚砂、石英砂
- 主营：贝壳粉、滑石粉、火山石、珍珠岩、云母粉、水洗石、石英砂、果木炭、金刚砂、硅灰粉、玻璃珠、陶瓷球、沙滩沙、绿沸石、玻璃砂、高岭土、白云石、膨润土、蛭石粉、硅藻土、碳酸钙、透明粉、地面铺路、保温砂浆、沸石颗粒、贝壳彩片
- 主营：杨木粉、云母粉、蛭石粉、珍珠岩粉、膨润土、电气石、莫来砂、硅藻土、碳酸钙、石英砂、有机覆盖物、80目锯末、云母20目、碳粉200目、防火材料、高岭土、叶腊石粉、沸石、海泡石粉、橡胶涂料、膨胀蛭石、空心漂珠、油田堵漏剂、火山石粉、重晶石粉
- 主营：稻壳碳、气相白炭黑、有机覆盖物、珍珠岩颗粒、沉淀二氧化硅、硅藻土、云母粉、育苗蛭石、松树皮、玻璃微珠、椰糠椰砖、木粉、海泡石粉、水洗高岭土、煅烧高岭土、沸石粉、红色火山石、重晶石粉、食品级氧化钙、钙基膨润土、配重铁砂、还原铁砂、钠基膨润土、低温玻璃粉
- 主营：火山石、电气石、金刚砂、珍珠岩、麦饭石、火山岩、鹅卵石、石英砂、埋香沙子、宠物垫料、彩色石子、沸石颗粒、五彩石子、粉色沙子、耐火材料、膨润土球、配重铁砂、沙画彩砂、凹凸棒土、白色小石头、铸造用粘土、海沙圆粒砂、暖贴用蛭石、水族鱼缸过滤、研磨抛光果壳、水泥油漆调色剂
- 主营：洗手粉、去污剂、珠光砂、珍珠岩、玻化微珠、抹灰石膏、保温砂浆、保温涂料、园艺花卉、育苗基质、盆栽植物、石膏砂浆、保温材料、磨砂玻璃、橡塑制品、隔热保温层、防火保温板、基质营养土、建筑保温填缝、外墙保温系统、颗粒防火涂料、保温填充材料、屋面管道绝缘层、外墙装饰一体板、白片手机前盖板
- 主营：氧化铁颜料、铁粉、膨润土、珍珠岩、矿物纤维、木质纤维、硅酸铝纤维、海泡石纤维、云母粉
- 主营：萤石块、发光石、轻钙粉、珍珠岩、蛭石粉、夜光沙、夜光石、云母粉、夜光粉、夜光砖、托玛琳、海泡石、硅藻土、萤石粉、萤石球、滑石粉、石英粉、电气石、蛭石片、氟化钙、彩砂、盐沙、石英砂、漂珠、碳酸钙粉
- 主营：生石灰氧化钙、熟石灰氢氧化钙、碳酸钙粉、珍珠岩、滑石粉、膨润土、云母、云母岩片、蛭石、玻璃粉、硅藻土、玻璃砂、陶瓷球、陶瓷砂、铝矾土、海泡石、木粉、木质纤维、电气石粉、锗石粉、橡胶颗粒、轮胎颗粒、石英砂、白云石
- 主营：中华麦饭石、石英砂、石英粉、珍珠岩、水洗无烟煤、石墨、煤粉、营养土园艺绿化土、高岭土、膨润土、硅藻土、活性白土、远红外粉、电气石、火山石、沸石、粉煤灰、矿粉、炭黑、彩砂、活性炭、水处理磁粉、重晶石粉、碳酸钙、重钙轻钙、鹅卵石
- 主营：碳酸钙、石英砂、金刚砂、珍珠岩、滑石粉、矿粉、微硅粉、染色砂、陶瓷球、高岭土、鹅卵石
- 主营：磁粉、铁粉、铁砂、珍珠岩粉、硅藻土、膨润土、轻钙、重钙、氢氧化钙、氧化钙、煅烧滑石粉、膨润土颗粒、硅灰、活性白土、萤石粉、石英粉、高岭土、沸石粉、煅烧高岭土、莫来砂、玻璃粉、贝壳粉、远红外粉、凹凸棒土
- 主营：重钙粉、硅酸铝粉、煅烧高岭土、珍珠岩粉、种子包衣粉、石英粉、蛭石、凹凸棒土、活性白土、硅酸镁锂、鸡蛋壳粉、轻质碳酸钙、矿粉、硅灰、硅酸铝纤维、轻质氧化铝粉、石英砂、滑石粉、太空砂、透明粉