El medio ambiente en la minería

EL MEDIO AMBIENTE EN LA MINERIA 132 111. POLLUTION PREVENTlONTECHNOWGY Antipollution measures were needed to satisfy the environmental' pollution regulations and proteet the environment while the circumstancessurrounding the copper industty became increasingly stricter. The maio measures taken for pollution prevention are as follows: Process gas control technology for gas leakage preventjon ,/;' ". Stable operadon of the .acid plant with high SÜ2 strength gas .Fugitivegas control technology Acid plant blowdown teehnology and arsenic recovery from the weak acid preeipitate - Effiuent treatment teehnology .1. Process Gas ControJ Tecbnology , Draft of the flash fumace and converters is well controlled by the rotating , speed of each fan as well as the damper operiirig atiilched to each waste heat .'bóiler outIet, being always in the range oC -2 ---:::4 mmAq to prevent any gas leakages, as shown in Figure 3. ." r~-'l 1, r-'-." l' I I I I I I I I I I I I , I . I I I • r------'~8-'-"'-' I I ~_. __ .- .- r------------- --¡ , ------- ... __ . --~ , i r I I I 1 l . I • i L__- 1-_- .- - --t- __ .1 ACID PLAN lNLET ~;;:;:::~"""'OM=P"1-. __ ... __ "" .. _ •_____•___ ......... ___..... _____.. .1 FigureJ. Furnace draft control system