专业英语 污泥减量

人们开始由污泥的末端治理转向“源头控制”，因此污水处理过程污泥减量技术得到了广泛的研究，并且某些技术已成功应用在大型污水处理厂内。

People began to drive the transition from the end of the sludge treatment to "source control" and therefore the sewage treatment process sludge reduction technology has been widely studied,And some of the technology has been successfully applied in large-scale sewage treatment plant.

目前污泥减量技术主要基于以下四种理论：溶胞-隐性生长、能量解偶联代谢、维持代谢和动物捕食。随着研究的不断深入，污泥减量技术逐渐由实验室研究发展到中试规模、部分技术甚至在实际工程中得到应用，且取得了明显的污泥减量效果。

Currently sludge reduction is based on the following four theories: the lysis - cryptic growth, energy uncoupling metabolism, maintain metabolism and animal prey/Microbial predation. With the deepening of the study, sludge reduction technology gradually developed from laboratory research to pilot scale, some technology even has been applied in practical engineering and sludge reduction achieved significant results.

溶胞-隐性生长(Lysis-crypticgrowth)减量技术

Lysis recessive growth

溶胞-隐性生长是通过物理、化学及生物方法将细胞壁和细胞膜破坏，释放出胞内物质作为微生物代谢的底物，进而实现污泥总体表观产率降低，污泥产量减少。该技术关键的步骤是微生物溶胞处理技术。

Lysisrecessive growth is a mechanism to destroy the cell walls and membranesthrough physical, chemical and biological methods, releasing intracellular material as a substrate for microbial metabolism, thus making overall apparent sludge yield coefficient decreased and sludge production is reduced. The key step of the processing technology is a microorganism lysis technique.

超声，Ultrasonic酶制剂，Enzymes氧化剂Oxidant

2、解偶联代谢(Uncouplingmetabolism)的污泥减量技术

Metabolic uncoupling

微生物的分解代谢和合成代谢是紧密偶联的，微生物分解代谢过程中产生的能量通过氧化磷酸化过程而储存在三磷酸腺苷(ATP)中，进而为合成代谢提供能量。但在某些条件下(如化学解偶联剂、营养过剩等)，由于分解代谢产生的能量不能有效地通过氧化磷酸化过程储存在ATP中，进而抑制合成代谢，致使污泥产量减少。目前主要有投加化学解偶联剂、高S0/X0下的解偶联技术。

Catabolic and anabolic of microbes are closely coupled, the energy generated from the process of microbial catabolicarestoredin adenosine triphosphate (ATP) by the oxidative phosphorylation process, and thereby it provides energy for the synthesis and metabolism. But under certain conditions (such as chemical uncoupler, nutrition, etc.), due to the energy generated from decomposition metabolism process can not be effectively stored in ATP through oxidative phosphorylation, thereby it inhibites the synthesis and metabolism, resulting in reduced production of sludge. Currently there are some technology such as dosing chemical uncoupler, uncoupling high technology S0 / X0 under.

2.1投加化学解偶联剂dosing chemical uncoupler

2.2较高的初始底物浓度与初始污泥浓度之比(S0/X0)

The ratio of initial substrate concentration and initial sludge concentrations needs to be high. 3、维持代谢(Maintenancemetabolism)减量技术Maintain metabolism