纤维水镁石（FB）的污染特性研究

Study the Contamination Characters of Fibrous Brucite

本文对陕南某矿山世界上最大的唯一产出工业纤维水镁石生产环境中的粉尘污染源，污染物特征，矿区粉尘特征及纤维水镁石气溶胶的运动特性进行研究，对粉尘运动动力、大气污染扩散、沉降及在水体中的运动与污染进行分析和计算。选矿厂单源污染半径４００～５００米，最大着地浓度２０ｍｇ／ｍ￣３，最大污染半径２．３ｋｍ。多源坡向污染半径４～１０ｋｍ。纤维水镁石粉尘在水体中溶解导致水体污染及化学成分、ＰＨ值、矿化度的变化和上升。

This article studied the pollution sources of dust,contaninant characters,mine dustcomposition and the motion features of fibrous brucite gasous sol in producting process,which located in the South of Shanxi is only one operated fibrous brucite deposit。It is anal-ysed and caculated that the motion power,atmosphere pollution disfusion and deposit as soas the moving and contamination in the water。The results as follow :400～500m Pollutionradius,20 mg/m￣3 maxium touchdown concentration,2.3km maxium pollution radius in sin-gle source of workshop produced;4～10km pollution radius of multi-source on hills.Fi-brous brucite dust can solute in water and result in the change of water composition andthe increasing of PH value and degree of mineralization