查询词典 activated-sludge process

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

This paper mainly introduces the technology of turning sludge into resources, the uti lization of sludge in agriculture, the digestion of sludge to produce methane, t he technology of turning sludge into fuel and building materials, and other slud ge treatment technologies.

污泥的土地利用、污泥消化制沼气、污泥燃料化技术、污泥的建材利用及污泥的其他几种资源化处理方法，有利于污泥处理效率的提高和环境的改善。

Aiming at the physical and chemical characters of heavy oily sludge and starting from the study of residual oil thermal value of the oily sludge, incinerating treatment has been carried out to realize reduction and harmlessness of sludge, which developed the core technology and provide scientific support for oily sludge treatment.

针对稠油含油污泥的理化性质，从含油污泥的残油发热量研究开始，利用含油固形物的发热量进行焚烧处理，实现污泥的减量化和无害化，建立含油污泥处理的核心技术方法，为含油污泥的处理提供科学依据和技术支持。

Oily sludge can be divided into oil, water and mud through quality adjustment and mechanical dewatering, but the sludge cake must be treated finally; Microorganism can degrade the organic substance of oily sludge into CO2 and H2O, but efficiency of biodegradation need to be enhanced; Solidification can decrease the exudation of injurant. Comprehensive utilization will be the dominant technique for oily sludge treatment in the future.

调质-机械脱水可有效的分离油-水-泥，但产生的泥饼需进一步处理；生物处理可以将含油污泥中的有机物彻底降解为CO2和H2O，但降解效率有待提高；固化可以大大降低有害物质的渗出率；资源化利用将成为含油污泥处理技术的发展趋势。

This paper expounds the definition and characteristics of sludge compost,reviews the advantages and disadvantages of the application of sludge compost in agricultural production and application methods,and suggests that the development direction of the application of sludge in park flower s cultivation is to reduce use quantity and to make sludge as resources and harmless.

阐述了污泥堆肥的定义及特点，综述了污泥堆肥在园林花卉应用中的优缺点及应用途径，指出了污泥在花卉园林应用中的发展趋势是：减量化、污泥化及无害化。

Activated Sludge Model No.1 (ASM1) was used for bioreactor modeling. A case study was made for a complex activated sludge process including nitrification, denitrification and aeration. Optimization waas made for three reactor layouts.

采用ASM1模型来模拟生物反应，对包括硝化、反硝化和曝气等复杂过程的活性污泥废水处理系统进行了模拟和优化研究。

The effect of calcium chloride on activated sludge was researched in the Activated sludge process.

同时研究了普通活性污泥工艺条件下氯化钙盐度对活性污泥活性的影响。

The sum of BCOD of BODst test and XH measured through batch respirometer is consistent with the BCOD of BODlt test and the ratio between them was in the range of 0.88-1.02 with average 0.94. The BODlt test is time-consuming and the microorganisms'population and their metabolic characteristic are different from that of the actual activated sludge process. So the respirometry has the advantage of time-validity and representation for the actual activated sludge system.

6呼吸测量法测得的BCOD明显小于长期BOD测试方法的结果，这是由于后者得到的BCOD包括所有的活性微生物COD组分；短期BOD测试得到的BCOD与异养菌COD之和与长期BOD测试得到的BCOD比较接近，两者之比在0.88-1.02之间，平均值为0.94；长期BOD测试耗时长，测试用的微生物种群及其代谢类型都与实际活性污泥过程明显不同，因此，从测试结果的时效性和代表性方法考虑，短期BOD测试更具优势。

The researches on the formation mechanism,influence factor and hazards of foam problem in activated sludge process have shown,that it is mainly caused by excess growth of Nocardia amarae,Nocardia pinensis,Microthrix parvicella and Actinomycetes and intently related to the circumstance factors such as the temperature,pH value,F/M ratio,the kinds of benthonic substances and the operating conditions of the activated sludge system.

摘 要：对国内外活性污泥法中产生泡沫的危害、机理及影响因素的研究结果表明：诺卡氏菌群(Nocardia amarae，Nocardia pinensis)，微丝菌，放线菌的过量增殖是泡沫产生的主要原因。

The results compared with the unimmobilized activated sludge indicated the method was effective and feasible. The optimized conditions which activated sludge was immobilized by the mixed carrier process using PVA as major entrapping material were studied.

设计了带磁场的污水处理反应器装置，对生活污水进行处理，并于传统活性污泥法进行比较，证明固定化活性污泥微球用于处理生活污水是可行和有效的。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。