文档介绍：本论文研究由以下项目支持: 1、973计划前期研究专项项目(2012CB’723106) 2、宁夏环境保护科学技术研究项目(20100803) 摘要污水处理和C02减排是目前社会经济发展所面临的重大环境问题,而煤化工产业在生产过程中产生了大量的废水及C02。本试验以微藻为主要材料,以煤制甲醇废水、C02为研究对象,通过筛选获得能在煤制甲醇废水和10%的C02中快速生长的藻种,并探讨试验藻生长的适宜条件,评价微藻处理废水N、P、COD、重金属及固定C02的效果,旨为利用微藻处理煤制甲醇废水和固定C02的研究提供相关数据。取得的主要结果如下: (1)小球藻(Chlorella sp.)能够在煤制甲醇废水和通入10%C02环境中快速生长,而螺旋藻(Spirulina sp.)和蓝藻(Synechoayst缸sp.)两株藻种不能良好的生长,很快进入死亡期。(2)小球藻(Chlorella sp.)的最适氮源为硝态氮,,小球藻的生长速度较快,经过lOd的培养,"1; ,t时,小球藻的生长速度较快, -1,显著高于其它磷浓度的处理。小球藻适宜的生长条件为:温度30。, 光照强度6 0001ux。(3)驯化前后的小球藻对废水中N、P、COD及重金属cd2+、Pd2+、cu2+、zn2+的处理效果差异明显。在整个培养过程中,经驯化的小球藻处理废水中N、P、COD及重金属CdH、 Pd2+、Cu2+、zn2+的能力明显增强,%、%、%、%、%、 %、%,%、%、%、%、%、 %、%。(4)小球藻能够在较高的C02含量中生长,且均比通入空气的生长速率快,当C02含量为15%时,小球藻的生长速度较快;当C02浓度在10%~15%时,其圃碳率为40%左右;当通入15%CO,,通气量为300mL/min时,小球藻的生K速率较快,其同碳率为42%。关键词:微藻,小球藻,煤制甲醇废水,C02,重金属,COD 46stract Wastewater骶atment and C02 emission reduction were themajor environmental problems tor me social andeconomic development,and lotsofwastewater and C02 were made intheproduction process ofcoalchemical study takesmicroalgae getting thedominant species byscreening which could grow rapidly incoal derived methanol wastewater and 0%C02 treatment and,further exploring theoptimal growth conditions the effectofwastewater the fixed effect ofC02,in order toprovide the relevant data forthestudy that on treatment and utilization ofcoalmethan01 wastewater and C02 main results asfollows: (1 Under theconditions ofusing coal derived methanol wastewater asmedium andpassmg into 0%C0,,the research found thatChlorella grow rapidly,while Spirulina sp·and Synechoaystis not grow normally,and soon entered thedeath phase· f2)Nitrate was theoptimal nitrogen source ofChlorella growth speed was faster, biomass and ma)【imum specific growth rate ofChlo