Polyethylene Particle Wastewater
Overview
Polyethylene granules for sewage treatment are engineered plastic particles specifically designed for water purification systems. These high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE) granules serve as durable media in biological filtration, membrane bioreactors, and moving bed biofilm reactors (MBBRs). Their uniform size (typically 2-10mm) and high surface-area-to-volume ratio make them ideal for microbial colonization in wastewater treatment plants. Compared to traditional materials like sand or activated carbon, polyethylene granules offer longer service life (5-10 years) and lower maintenance requirements.
Physical and Chemical Properties
Sewage-grade polyethylene granules exhibit exceptional chemical resistance, withstanding pH ranges from 2 to 12 without degradation. Their density (0.94-0.96 g/cm³) allows for optimal fluidization in treatment tanks while preventing media loss during backwashing. The material's hydrophobic surface promotes selective biofilm formation, enhancing nutrient removal efficiency. UV-stabilized formulations maintain structural integrity in open-air treatment systems. Testing parameters typically include bulk density (450-550 kg/m³), porosity (30-40%), and specific surface area (500-800 m²/m³).
Main Applications
In municipal wastewater plants, these granules function as biofilm carriers in MBBR systems, achieving 85-95% BOD removal. Industrial applications include food processing effluent treatment and pharmaceutical wastewater purification where chemical resistance is critical. Advanced configurations incorporate porous PE granules for simultaneous filtration and biological treatment. Some specialized variants contain embedded nutrients to accelerate microbial colonization during system startup. Emerging applications include microplastic filtration and stormwater management systems.
Safety and Storage
While polyethylene is generally inert, processing precautions include adequate ventilation to prevent dust accumulation. Storage should maintain temperatures below 40°C to prevent pellet fusion. Bulk shipments typically use moisture-resistant polypropylene bags with UV inhibitors. For long-term storage (>6 months), antioxidants may be added to prevent oxidative degradation. Fire safety measures should follow NFPA 654 standards for combustible particulate solids.
B2B Procurement Guide
When sourcing polyethylene granules for sewage applications, verify certifications like NSF/ANSI 61 for drinking water contact. Key specifications to request include melt flow index (0.3-5 g/10 min for HDPE), ash content (<0.1%), and heavy metal concentrations. Leading manufacturers offer custom formulations with controlled surface roughness (Ra 2-5μm) for optimized biofilm adhesion. Bulk purchases (20+ metric tons) typically qualify for 8-15% discounts. Consider regional suppliers to minimize transportation costs for these high-volume materials.
Related Manufacturers
- 主营：聚乙烯、排水管、增强缠绕管、耐腐蚀排污管
- 主营：结晶氯化铝、无烟煤滤料、絮凝剂、聚合氯化铝、聚氯化铝、聚丙烯酰胺厂家、聚丙烯酰胺、聚合硫酸铝、海绵铁滤料、鹅卵石滤料、除氟滤料、煤质活性炭、果壳活性炭、椰壳活性炭、蜂窝活性炭、斜管填料、蜂窝斜管、六水氯化铝、石英砂、絮凝剂厂家、净水剂生产厂家、流化床填料、泡沫滤珠、改性纤维球、纤维球
- 主营：聚苯乙烯泡沫滤珠、除臭箱填料、水处理滤料、水处理填料
- 主营：PE再生料、中空PE再生料、吹膜HDPE再生料、再生HDPE颗粒、改性再生PE颗粒、聚乙烯pe管道颗粒、聚乙烯PE回料、高密度聚乙烯PE颗粒、pe再生颗粒、低压聚乙烯PE颗粒、吹塑HDPE再生颗粒、再生PE低压颗粒、HDPE再生颗粒、聚乙烯HDPE、HDPE中空颗粒、塑木HDPE颗粒、再生pe低压颗粒、低压聚乙烯PE再生料、改性HDPE再生颗粒、HDPE再生塑料颗粒、环保HDPE再生颗粒、防水卷材HDPE颗粒、户外家具HDPE专用、HDPE再生料、HDPE回料
- 主营：生物填料火山岩、生物填料松树皮、生物填料竹炭、聚合硫酸铁、eps泡沫颗粒、生物填料陶粒、火山岩滤料、火山岩填料、石英砂、活性炭、鹅卵石、pp多面空心球、沸石填料、组合填料、流化床填料、斜管填料、悬浮球填料、纤维球滤料、ABS水帽、葡萄糖、醋酸钠
- 主营：乙烯基酯防腐涂料、无溶剂弹性防腐涂层、JRK三防一体防腐层、聚合物改性沥青防水层、污水厂防腐涂料、改性聚氨酯防腐涂料、IPN防腐涂料、VRA复合防腐涂料、氟改性重防腐涂层、水性沥青基防水涂料、桥面防水涂料、DPS永凝液、水性渗透型无机防水剂、硅烷、环氧沥青防腐涂料、环氧树脂防腐涂料、弹性环氧防腐涂层、fyt改进型防水涂料、二阶反应型防水涂料、lm复合防腐防水涂料、IPN8710防腐漆、氟碳防腐涂料、高分子防腐防水涂料、PB道桥防水涂料、F511B抗渗密实剂
- 主营：保温钢管、声测管、衬塑钢管、聚氨酯保温钢管、黑夹克聚氨脂发泡保温、绝缘接头、防腐钢管、石油套管、钢塑复合管、K55表层石油套管、包覆式3PE防腐钢管、涂塑钢管、环氧煤沥青防腐钢管、地埋管道环氧煤沥青防、IPN8710环氧树、水泥砂浆衬里防腐钢管、钢套钢保温钢管、钢制法兰、硅酸铝保温钢管
- 主营：PE 管、PE 给水管、农田灌溉管、聚乙烯、MPP 电力管、CPVC 电力管、PE 穿线管、PE 阻燃管、电缆保护管、PVC-O 给水管、格栅管、梅花管、HDPE 双壁波纹管、PE 通讯管、MPP 管、PVC-C 电缆保护管、塑合金格栅管、MFTP 塑钢电缆导管、MPP 波纹管、N-HAP 热浸塑钢管、硅芯管、HDPE 钢带增强管、PVC-UH 给水管、PVC-UH 排水管、PE 管件、PVC 管件
- 主营：生化池填料、MBBR填料、悬浮填料、聚氨酯海绵填料、污水处理填料、微生物固定化载体、A2O好氧池填料、生物滤池填料
- 主营：多孔pvc、pvc家装、梅花管、聚乙烯、格栅管、通信管、定制pvc、大小6-9、给水管、矩形管、pvc农田、波纹管、灌溉管、硅芯管、通讯管、pvc弱电、pvc电力、栅格管、保护管、玻璃钢、pvc管材、mpp电力、压力管、线管pvc、缠绕管、电缆管
- 主营：聚丙烯材质、沉淀处理池、溶气气浮机、斜管沉淀池
- 主营：pe给水管、PE燃气管、MPP电力管、聚乙烯、钢丝骨架复合管、pe排水管、HDPE管、pe灌溉管、pe管材、pe燃气管、钢丝网骨架pe复合管、pe管道、热熔pe管、pe给水管道、hdpe管、给水pe管、大口径pe管、pe拖拉管、PE穿线管
- 主营：防腐防霉涂料、防腐涂料、公路防撞墙防腐涂料、乙烯酯聚合物防腐涂料、污水池防腐涂料、MEAC防腐防水涂料、工业防腐涂料、PSQ防水防腐涂料
- 主营：气浮机污水处理设备、地埋污水处理设备、污水处理设备
- 主营：中空壁塑钢缠绕管、双高筋缠绕管、缠绕管B型克拉管、大口径污水管、钢丝网骨架复合管、钢带管、HDPE双壁波纹管、PE给水管、CPVC电力电缆管、HDPE通信管
- 主营：克拉管、排水管、缠绕管、聚乙烯克拉管、排污管
- 主营：曝气管、滤帽滤头、斜板填料、聚丙烯、盘式曝气器、微孔曝气器、管式曝气器、蜂窝斜管填料、处理絮凝沉淀池
- 主营：缠绕管、克拉管、排水管、pp聚丙烯管、聚丙烯静音管、钢带增强聚乙烯螺旋波纹管、钢丝网骨架聚乙烯复合管、波纹管、3spp静音、pe穿线管、pe复合管、pe排水双、pp超静音、pe给水管、pe引水管、排水排污、下水管道、pe自来水管、钢带增强管、塑料给水管、大口径排污、增强螺旋管、hdpe双壁波纹管、塑钢缠绕管、pe管件
- 主营：滚塑机、加药箱、气浮机、污水净化槽、地埋式污水处理设备、PE污水净化槽、生活污水净化槽、小型污水净化槽、加药罐、加药桶、刮泥机、压滤机、化粪池、塑料油箱、滚塑机设备、滚塑机械、乡村净化槽、一体化净化槽、农村净化槽、PE净化槽、无动力净化槽、分散式净化槽、立式净化槽