粉煤灰处理造纸废水及微生态复混肥的制备.pdf

东北大学
硕士学位论文
粉煤灰处珝纸废水及微牛怣复混肥的制备
姓名:王武名
巾请学位级別;硕士
专业:矿产普查与题探
指导教帅:王恩德
003⊥201
东北大学硕士学位论文
摘要
粉煤灰处理造纸慶水及微生态复混肥的制备
摘要
电力工业的长期以来粗放的利用方式造成了媒矿资源的过量消耗,还
造成生态破坏和环境污染,产物粉煤灰占用土地资源、引起大气和地下
水污染问题日益突出。对我们这个水资源缺乏,可耕地人均占有率很低
的国家来说,如何做好粉煤灰的利用和处置确实是一个十分重要的问题。
针对这一现状,本文作为辽宁省煤矿循环经济研究课题的一部分,根
据王恩德教授提出的矿物资源集约利用的学术思想,通过对粉煤灰物理
化学性质及其环境效应的讨论,将粉煤灰这种矿物资源作为一种新型环
境材料,利用其性质处理造纸废水并将其与微生物相互作用,相互结
制备粉煤灰微生态复混肥。这是集约利用的有益尝试。
本文通过实验得出了以混合酸φ(HCl):(H2SO4)=1:3改性的
粉煤灰处理造纸废水COD去除率较改性前提高了71%;粉煤灰处理造
纸废水的最佳实验条件为:改性粉煤灰的用量25g/100mL,pH值10,吸
附时50min,粉煤灰粒径74-83um;在最佳实验条件下,COD、BOD、
悬浮物(SS)和色度的去除率分别达到了81.5%、80.74%、99.1%和94%。
出水水质达到并优于《造纸工业废水污染物排放标准》(GB3544-2001)
表1中混合废水标准值。处理完造纸废水的粉煤灰作为固氮蘭的载体
其15天的活歯数达到1.8×108个/克;将載有固氮菌的粉煤灰与一定比
例的无机化肥、泥炭组合在一起制成新型肥料一一微生态复混肥。微生
态复混肥养分含量达到有机无机复混肥标准,活菌数低于微生物复混肥
标准。通过马蹄莲、文竹、芦芸和小白菜等的种植实验证明徹生态复混
肥能够改良土壤,缓释长效、均衡地供给作物养分。
关键词:粉煤灰造纸废水固氮菌微生态复混肥矿物集约利用
II
东北大学硕士学位论文
ABSTRACT
Treating Papermaking Wastewater and Producing
Micro-ecological Compound Fertilizer with Fly Ash
ABSTRACT
Electric power industry had extravagantly used lots of coal for a long time, which
had made coal resources excessively consumed and had destroyed ecology and
polluted our environment. Nowadays, the electric power industry wastes, fly ash
become more and more serious problem to our environment. It has occupied a lot of
eround resource and polluted the air and groundwater. As we all know, our nation is
short of water resource; and the average possession ratio of cultivated ground is low
So it is important in our nation to deal with or to treat fly ash rational
Under this condition, this thesis, as a part of the Study on Liaoning Coal Resource
Recycle Economy, used the learning antilogy of mineral intensive using which brought
forward by professor Wang Ende, discussed and analyzed the physical and chemical
characteristics of fly ash, applied this new mineral resource as a new type of
environmental material to the treatment of papermaking wastewater, and transacted the
remain silt with azotobacter, then mixed them with chemical fertilizers and peatmoss
under a properly proportion to produce micro-ecological compound fertilizer. This is a
profitable try of mineral intensive using
We found that removal of COD increased when fly ash modified before used to treat
papermaking wastewater after doing many experiments. Through the further
experiments we found the most effective modifying additions, it is 9(Hcl)
(H2S04)=1 : 3. When modified fly ash by o(HCI): Q(H2SO4)==1: 3, the removal
of COD increased by 71%. Among all the technical conditions, the most effective one
is quantity of fly ash 25 /100ml, PH=10, adsorptive equilibrium 50mins and size of
fly ash 74-83 u m. And under this condition the removal of COD, BOD, SS and
chroma respectively reached to 81.5%, 80.74%, 99.1% and 94%. The effluent water
quality reached and even excelled to the impure wastewater standards of table I in
GB3544-2001. After treating the papermaking wastewater, fly ash was used to the
carrier of azotobacter, the living bacteria numbers in one gram reached to 1. 8x 10