MIXED FOULING GROWTH PROCESS-MICROBIAL AND CaCO3 FOULING IN WATER SYSTEMS

LI Xiangqin; LIU Tianqing; WANG Hongling; SUN Xiangyu

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MIXED FOULING GROWTH PROCESS-MICROBIAL AND CaCO3 FOULING IN WATER SYSTEMS

更新时间：2025-12-10

- MIXED FOULING GROWTH PROCESS-MICROBIAL AND CaCO3 FOULING IN WATER SYSTEMS
- CIESC Journal Issue 12, (2002)
- 作者机构：
  
  大连理工大学化工学院化学工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 December 2002，
  
  Published：25 December 2002
- 稿件说明：
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LI Xiangqin, LIU Tianqing, WANG Hongling, et al. MIXED FOULING GROWTH PROCESS-MICROBIAL AND CaCO3 FOULING IN WATER SYSTEMS[J]. CIESC Journal, 2002, (12).
DOI：

LI Xiangqin, LIU Tianqing, WANG Hongling, et al. MIXED FOULING GROWTH PROCESS-MICROBIAL AND CaCO3 FOULING IN WATER SYSTEMS[J]. CIESC Journal, 2002, (12). DOI：

摘要

对模拟工业水系统中荧光假单胞菌与碳酸钙在固体壁面上形成混合垢的过程进行了实验研究

考察了在不同碳酸钙饱和程度及主体流速下混合垢在不同材料表面上的结垢行为

获得了不同材料表面上混合垢随时间的生长曲线。结果表明:平均混合垢量少于平均生物垢量;在碳酸钙不饱和水体中

平均混合垢量极少;在碳酸钙饱和水体中

随碳酸钙过饱和程度及主体流速的增大

平均混合垢量减少

混合垢生长的诱导期缩短;非金属表面上的平均混合垢量多于金属表面上的;碳酸钙颗粒首先吸附到材料表面上

然后是微生物的黏附生长;碳酸钙的存在抑制微生物与材料表面的结合

而微生物的生长繁殖又抑制了碳酸钙的沉积。

Abstract

The initial formation process of mixed fouling of Pseudomonas fluorescent and CaCO3 on the different solid surfaces in a simulated cooling water system was investigated. The mixed fouling behavior on different solid surfaces under the conditions of different CaCO3 saturation levels and bulk velocities was examined

and the growth curves of mixed fouling were obtained. The results showed that the average mass of mixed fouling was less than that of biofouling. In the unsaturated CaCO3 solution

the average mixed fouling mass was little; but in the saturated CaCO3 solution

with the saturation level of CaCO3 and bulk velocity increasing

the average mass and induction period of the mixed fouling decreased. The mixed fouling mass on non- metallic material surfaces was more than that on metal material surfaces. It was also found that CaCO3 particles were adsorbed to the surfaces firstly

then microbes were adsorbed. The existence of CaCO3 inhibited the combination of microbes with surfaces

on the other hand

the adsorption and growth of microbes suppressed CaCO3 fouling development.

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