白龙港污泥中温厌氧消化快速启动研究

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3.0 侯斌 2024-11-19 4 4 1009.51KB 83 页 15积分
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摘 要
本课题为上海市科学技术委员会科研计划项目课题“污泥安全处置及资源化关
键技术研究(09dz1204100)”之子课题“白龙港污泥厌氧消化工程优化运行研究
(09dz1204102)”中的部分研究内容。此项研究内容具有较高的推广和应用价值，
可为类似工程提供借鉴和示范。
本课题研究内容可分为三部分：第一部分内容为无接种污泥启动实验研究；
第二部分内容为无接种清水启动实验研究；第三部分内容为接种启动实验研究。
研究结果表明：(1) 在无接种污泥启动实验研究中，以恒定污泥投配率投加生
污泥的消化系统在第 35 天左右时达到稳定运行状态；以变污泥投配率投加生污泥
的消化系统在第 25 天左右时达到稳定运行状态。污泥中温厌氧消化系统的最佳启
动方式为以变污泥投配率投加生污泥的系统的启动方式，即在系统初始状态为原
污泥的条件下，厌氧消化 7天后，以 1%-2%-3%-4%-5%的变污泥投配率投加原污
泥直到系统成功启动。(2) 在无接种清水启动实验研究中，以恒定污泥投配率投加
生污泥的消化系统在第 40 天左右时达到稳定运行状态；以变污泥投配率投加生污
泥的消化系统在第 50 天左右时达到稳定运行状态。污泥中温厌氧消化系统的最佳
启动方式为以恒定污泥投配率投加生污泥的系统的启动方式，即在系统初始状态
为清水的条件下，以 5%的恒定污泥投配率投加原污泥直到系统成功启动。(3) 在
接种启动实验研究中，以成熟消化污泥作为接种物质的消化系统在第 19 天时达到
稳定运行状态；以牛粪作为接种物质的消化系统在第 28 天时达到稳定运行状态。
以成熟消化污泥作为接种物质的消化系统的启动方式较佳；牛粪与成熟的消化污
泥相比，成熟的消化污泥是启动消化系统的最佳接种物质，能够在较短的时间内
启动厌氧消化系统。(4) 与无接种清水启动实验得到的启动方式相比较，无接种污
泥启动实验得到的启动方式更能快速启动无污泥接种的厌氧消化系统。大型污水
处理厂厌氧消化系统的启动宜分为“两步走”：第一步采用无接种污泥启动实验研
究中推荐的启动方式对称启动两组消化系统，系统启动成功后会产生大量成熟的
消化污泥；第二步使用第一步成熟的消化污泥接种对称启动其他的消化系统，直
至所有的消化系统成功启动。采用此种启动方式，如果系统有 6组消化系统，那
么完全启动所有消化系统所用时间比以传统启动方式启动所用时间缩短至少 30%；
如果系统有 8组消化系统，那么完全启动所有消化系统所用时间比以传统方式启
动所用时间缩短至少 25%。
关键词: 污泥中温厌氧消化 污泥启动 清水启动 接种启动
ABSTRACT
This subject is a section of “Study of Optimization and Operation of Bailonggang
WWTP Sludge Anaerobic Digestion Project(09dz1204102)” which is the subtopic of
“Technical Study of Treatment of Safety and Recycle of Sludge(09dz1204100)” from
STCSM. The content is characterized of high promotional and applicable value,
providing an example for similar engineerings.
The main research content involved can be divided into three parts, whose first part
is study of start-up of test of sludge; whose second part is study of start-up of test of
effluent and whose third part is study of start-up of test of inoculation respectively.
The results obtained show that: (1) In the test of sludge, system characterized of
constant feeding rate achieves stable operation condition in the days of 35 while
system characterized of variational feeding rate in the days of 25.The optimium start-up
method of system characterized of variational feeding rate is that raw sludge is added in
the name of feeding rate from 1% to 5% after the sludge digested for 7 days under the
conditions that the initial state of system is full of raw sludge. (2) In the test of effluent,
system characterized of constant feeding rate achieves stable operation condition in the
days of 40 while system characterized of variational feeding rate in the days of 50. The
optimium start-up method of system characterized of constant feeding rate is that raw
sludge is added in the name of feeding rate at 5% under the conditions that the initial
state of system is full of effluent. (3) In the test of inoculation, system inoculated by
digested sludge achieves stable operation condition in the days of 19 while system
inoculated by dairy manure in the days of 28. The optimium start-up method is system
inoculated by digested sludge. Compared to dairy manure, the digested sludge is the
ideal inoculant, which can enable system to reach stable state in a relatively short period
of time. (4) System through sludge can achieve steady status faster than the one through
effluent. Two steps are available to enable system to reach stable state for large WWTP.
The first step is to start up two anaerobic digesters through raw sludge symmetrically,
utilizing the recommended method in the test of sludge; and the second step is to start
up other digesters applying the digested sludge produced from the first step. Compared
to the conventional start-up method, the time for the start-up of anaerobic digestion
system can be shorted by at least 30% if the WWTP has 6 groups of sludge mesophilic
anaerobic digestion system; And the time for the start-up of anaerobic digestion system
can be shorted by at least 25% if the WWTP has 8 groups of sludge mesophilic
anaerobic digestion system.
Keywords: sludge mesophilic anaerobic digestion, test of sludge, test of
effluent, test of inoculation
I
目 录
中文摘要
ABSTRACT
第一章 绪论 .................................................................................................................... 1
§1.1 课题来源与背景 ............................................................................................. 1
§1.1.1 课题来源 .............................................................................................. 1
§1.1.2 课题研究背景 ...................................................................................... 1
§1.2 污泥厌氧消化技术 ......................................................................................... 3
§1.2.1 污泥常温厌氧消化 .............................................................................. 4
§1.2.2 污泥中温厌氧消化 .............................................................................. 4
§1.2.3 污泥高温厌氧消化 ............................................................................... 4
§1.3 污泥中温厌氧消化技术 ................................................................................. 5
§1.3.1 技术发展与应用现状 .......................................................................... 5
§1.3.2 污泥厌氧消化技术研究 ...................................................................... 6
§1.3.3 厌氧消化影响因素研究 ...................................................................... 8
§1.4 课题研究内容和意义 ................................................................................... 16
§1.4.1 课题研究内容 .................................................................................... 16
§1.4.2 课题研究意义 .................................................................................... 16
§1.5 课题研究关键技术与创新点 ....................................................................... 17
§1.5.1 课题研究关键技术 ............................................................................ 17
§1.5.2 课题研究创新点 ................................................................................ 17
第二章 无接种污泥启动实验研究 .............................................................................. 19
§2.1 实验装置与实验方法 ................................................................................... 19
§2.1.1 实验装置 ............................................................................................ 19
§2.1.2 实验用泥 ............................................................................................ 20
§2.1.3 实验设计方案 .................................................................................... 20
§2.1.4 实验检测指标与方法 ........................................................................ 20
§2.2 无接种污泥启动实验各指标变化 ............................................................... 21
§2.2.1 pH 值变化规律 ................................................................................... 21
§2.2.2 ORP 变化规律 .................................................................................... 22
§2.2.3 VFA 及其各组份变化规律................................................................. 23
§2.2.4 ALK 变化规律 .................................................................................... 26
§2.2.5 VFA/ALK 变化规律 ........................................................................... 26
II
§2.2.6 MLSS 变化规律 .................................................................................. 27
§2.2.7 MLVSS 变化规律 ............................................................................... 28
§2.2.8 产气率变化规律 ................................................................................ 29
§2.2.9 CH4含量变化规律 .............................................................................. 30
§2.2.10 CO2含量变化规律 ............................................................................ 31
§2.2.11 H2S含量变化规律 ............................................................................ 32
§2.3 本章小结 ....................................................................................................... 33
第三章 无接种清水启动实验研究 .............................................................................. 36
§3.1 实验装置与实验方法 ................................................................................... 36
§3.1.1 实验装置 ............................................................................................ 36
§3.1.2 实验用泥 ............................................................................................ 36
§3.1.3 实验设计方案 .................................................................................... 37
§3.1.4 实验检测项目与方法 ........................................................................ 37
§3.2 无接种清水启动实验各指标变化 ............................................................... 37
§3.2.1 pH 值变化规律 ................................................................................... 37
§3.2.2 ORP 变化规律 .................................................................................... 38
§3.2.3 VFA 及其各组份变化规律................................................................. 39
§3.2.4 ALK 变化规律 .................................................................................... 41
§3.2.5 VFA/ALK 变化规律 ........................................................................... 42
§3.2.6 MLSS 变化规律 .................................................................................. 43
§3.2.7 MLVSS 变化规律 ............................................................................... 44
§3.2.8 产气率变化规律 ................................................................................ 45
§3.2.9 CH4含量变化规律 .............................................................................. 46
§3.2.10 CO2含量变化规律 ............................................................................ 46
§3.2.11 H2S含量变化规律 ............................................................................ 47
§3.3 本章小结 ....................................................................................................... 48
第四章 接种启动实验研究 .......................................................................................... 51
§4.1 实验装置与实验方法 ................................................................................... 51
§4.1.1 实验装置 ............................................................................................ 51
§4.1.2 实验用泥 ............................................................................................ 51
§4.1.3 实验设计方案 .................................................................................... 53
§4.1.4 实验检测项目与方法 ........................................................................ 53
§4.2 接种启动实验各指标变化 ........................................................................... 53
III
§4.2.1 pH 值变化规律 ................................................................................... 53
§4.2.2 ORP 变化规律 .................................................................................... 54
§4.2.3 VFA 及其各组份变化规律................................................................. 55
§4.2.4 ALK 变化规律 .................................................................................... 57
§4.2.5 VFA/ALK 变化规律 ........................................................................... 58
§4.2.6 MLSS 变化规律 .................................................................................. 59
§4.2.7 MLVSS 变化规律 ............................................................................... 59
§4.2.8 产气率变化规律 ................................................................................ 60
§4.2.9 CH4含量变化规律 .............................................................................. 61
§4.2.10 CO2含量变化规律 ............................................................................ 62
§4.2.11 H2S含量变化规律 ............................................................................ 63
§4.3 本章小结 ....................................................................................................... 64
第五章 结论 .................................................................................................................. 67
符号表 ............................................................................................................................ 69
参考文献 ........................................................................................................................ 71
在读期间公开发表论文和承担科研项目及取得的成果 ............................................ 78
致 谢 .............................................................................................................................. 79
摘要：

摘要本课题为上海市科学技术委员会科研计划项目课题“污泥安全处置及资源化关键技术研究(09dz1204100)”之子课题“白龙港污泥厌氧消化工程优化运行研究(09dz1204102)”中的部分研究内容。此项研究内容具有较高的推广和应用价值，可为类似工程提供借鉴和示范。本课题研究内容可分为三部分：第一部分内容为无接种污泥启动实验研究；第二部分内容为无接种清水启动实验研究；第三部分内容为接种启动实验研究。研究结果表明：(1)在无接种污泥启动实验研究中，以恒定污泥投配率投加生污泥的消化系统在第35天左右时达到稳定运行状态；以变污泥投配率投加生污泥的消化系统在第25天左右时达到稳定运行状态。污泥中温厌氧...

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作者：侯斌 分类：高等教育资料 价格：15积分 属性：83 页 大小：1009.51KB 格式：PDF 时间：2024-11-19

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