对《城镇污水处理厂污泥处理处置及污染防治技术政策》的解读

2009年2月住房和城乡建设部、环境保护部和科学技术部三部委联合颁布了<城镇污水处理厂污泥处理处置及污染防治技术政策>, 用以指导各地开展污水处理厂污泥处理处置工作.分析了我国城镇污水处理厂污泥处理处置面临的问题和原因,并对技术政策的有关要点进行解读.     

高碑店污水处理厂污泥处理系统工艺介绍及运行分析

北京高碑店污水处理厂的污泥处理系统是目前国内运转比较成功的大型污泥处理设施之一。从工程运行实践的角度,分析、总结了高碑店污水处理厂的运行经验,并提出一些新的运行思路,对今后污泥消化、沼气利用系统的建设和运营,都有非常重要的借鉴意义。     

青浦区城镇污水处理厂污泥处理与处置方式的探讨

本文在简要介绍城镇污水处理厂几种污泥处置典型工艺的基础上，结合青浦区污泥处置现状和存在的问题，通过分析已投入运营的城镇污水处理厂污泥特性，提出采用焚烧工艺作为青浦区城镇污水处理厂污泥处置方式。     

淮安市第二污水处理厂污泥处理系统改造工程

联系单位:淮安市给排水监督管理处项目内容:淮安市第二污水处理厂污泥处理系统改造工程,近期设计规模为200m~3/d(含水率80%),对服务范围内的四季青污水处理厂、市第二污水处理厂、楚州区污水处理厂、开发区污水处理厂和淮阴区污水处理厂的出厂污泥进行     

昆明市污泥处理处置现状及对策研究

城镇生活污水处理厂在削减水污染负荷的同时也会产生大量污泥,如果不能妥善处理处置,会造成二次污染和资源浪费.目前,昆明市共有38座城镇生活污水处理厂,日产污泥1059 t,其中主城区污泥产生量占全市的77.8％.昆明市污泥处理处置经历了从简易堆存到资源化利用的规范化过程.以昆明市为例,分析当代城市污泥处理处置技术路径的选择,并进行污泥管理现状分析和处理处置成本测算,提出进一步完善污泥处理处置工作的建议.     

武汉市污水污泥处理与处置规划介绍

随着城市化进程加快和市政污水系统的完善,污水污泥处理与处置问题越来越突出。首先对武汉市污水污泥处理处置现状进行介绍和分析,然后预测了武汉市2010年和2020年污水污泥量,接着在此基础上确定武汉市污水污泥处理厂布局方案和处理处置工艺,最后针对污泥规划的实施和管理提出建议。     

上海在建的三座大型城市污水处理厂介绍(一)--上海石洞口污水处理厂

介绍了上海市在建的三座大型污水处理厂的基本情况石洞口污水处理厂采用二级加强生物除磷脱氮工艺,白龙港污水处理厂采用一级加强物化法除磷处理工艺,竹园第一污水处理厂采用一级加强生物化学絮凝处理工艺;同时对三座污水处理厂的工艺流程,主要设计技术参数及污泥处理,总工程造价等进行了说明.     

石家庄市桥西污水处理厂二期工程污泥后处置方案探讨

1.建设污泥处理处置工程的必要性 石家庄市桥西污水处理厂一、二期工程每天共产生脱水污泥300m~3,污泥目前处理方式为外运填埋。建设部于2007年颁布实施了《城镇污水处理厂污泥处置混合填埋泥质》（CJ/T248-2007）,规范中规定污泥进入生活垃圾填埋场与生活垃圾进行共同处置时,要求其污泥含水率不大于60%,     

合肥经开区污水处理厂污泥深度处理技术的应用探讨

合肥经开区污水处理厂污泥高干度脱水项目采用浓缩机、隔膜式板框压滤机作为核心脱水设备,通过投加PAM、PAC进行化学调理改性,可将泥饼含水率控制在60％以下.介绍了板框压滤系统的工作原理和运行参数,对板框设备选型与运行成本进行了详细阐述,使用同一来源污泥对三套污泥脱水系统进行了比较,其中板框压滤机生产每吨干泥需投加PAM...     

日本污水处理厂设计运行及多因素影响分析

日本的污水处理起步较早,经过多年发展已经建设完善,并在其精细管理下编撰为《下水道統計》.对日本污水处理和污泥处置情况进行全面统计和深入分析,期望对我国污水处理厂的建设和运行具有借鉴意义.污水处理环节分析包括水质水量、处理要求、工艺和处理规模分布、深度处理方法、运行和设计参数、出水回用等;污泥处理环节分析包括污泥产量、处...     

长江中游四大家鱼发江生态水文因子分析及生态水文目标确定

基于长江中游四大家鱼发江量历次调查数据,采用宜昌站作为长江中游水文情势变化分析的控制站,基于其1900~2004年共105年的日径流资料,采用每年5~6月涨水过程数、总涨水日数、平均每次涨水过程日数等3项生态水文指标,分析了四大家鱼发江量与3项生态水文因子的变化关系,认为产卵场所处江段每年5~6月的总涨水日数是决定家鱼苗发江量多寡的一个重要环境因子。根据IHA方法,对宜昌站105年来的生态水文指标分析表明,长江宜昌站生态水文过程的改变并不明显,5~6月总涨水日数变化趋势不显著,显示长江中游影响四大家鱼苗发江量的生态流量过程改变不明显,与前人得出的葛洲坝枢纽修建后四大家鱼的产卵条件和卵苗江汛规律没有变化这一认识一致。但是,随着三峡水库的运行,下游河道的生态环境流量过程会有较大改变,本文建议三峡水库的调控以保障长江中游每年5~6月的总涨水日数维持在22.1±7.2范围内为生态水文目标,即可从生态环境流量过程方面补偿水利工程对中游四大家鱼鱼苗发江量的影响。     

Seminar on Water and Energy,Stockholm, Sweden,August 21, 2005

Abstract

In Europe the implementation of the Water Framework Directive (WFD) will have major implications for water resources management. Part of the Directive requires Member States to implement a comprehensive system of controls (licences) on the allocation and abstraction (withdrawal) of surface and groundwater resources. This paper describes the development of a procedure to help assess and set abstraction licences for agricultural irrigation. The methodology is described with reference to Scotland, a country with limited abstraction control previously and where irrigation is supplemental to rainfall. The methodology combines spatial climatic information using a Geographical Information System (GIS) with data derived from a water balance computer model. The procedure enables the volumetric irrigation demand in a ‘design’ dry year for a given site to be estimated, taking into account local variations in climate, soil type, land use and irrigation practices. The approach provides a scientifically robust framework to allow the regulatory authority to assess the ‘reasonable’ water requirements of individual irrigators and hence develop allocations to satisfy the range of competing demands (e.g. agriculture, industry, and environment) on water resources. The methodology is applicable in other temperate countries where water abstraction controls are required and where appropriate datasets are available. The application of the procedure and its methodological limitations are described.     

Stakeholder-driven,enquiry-driven,or stakeholder-relevant,enquiry-driven science?

There is currently debate within the international hydrological community on whether hydrological science should give priority to providing measurements, knowledge, and understanding pre-determined as being needed by stakeholders, or priority to more basic enquiry-driven science that will stimulate the continued health and growth of hydrology as an important Earth science discipline. Two recent major international initiatives in hydrology reflect these two perspectives. One, the Hydrology for the Environment, Life, and Policy (HELP) program, is primarily fostered by UNESCO-IHP and is focused on stimulating the stakeholder-driven hydrological science required in specific catchments that have become members of a global network. The second, the decade on Prediction in Ungauged Basins (PUB), which is appropriately managed by IAHS, is primarily driven by scientific enquiry and is focused on creating new scientific methods and understanding, albeit with practical application ultimately in mind. This paper summarizes the nature, origins, growth, and progress of these two international programs but also describes the subtly different approach that has been adopted by the U.S. National Science Foundation's (NSF's) Center for Sustainability of semi-Arid Hydrology and Riparian Areas (SAHRA). NSF is a federal agency whose primary goal is to ‘enable the future’ by stimulating novel science. Because SAHRA is a federally-funded entity supported by an agency with this goal, the Center clearly cannot operate in stakeholder-driven, response mode in competition with the already effective private U.S. consultancy industry. Nonetheless, SAHRA's mission is to create knowledge and build understanding that will enhance the prospects of sustainable water management in semi-arid regions, especially the southwestern U.S. To resolve this apparent conflict, SAHRA looks ahead to future stakeholder needs and builds its research agenda around selected critical stakeholder-relevant questions that require substantial and sustained investment in basic, multidisciplinary, enquiry-driven science. This paper describes SAHRA's approach and reports on associated research and outreach activities.     

Growth,Reproduction, Mortality,Distribution, and Biomass of Freshwater Drum in Lake Erie

Predominant age-groups in the Lake Erie freshwater drum Aplodinotus grunniens population were 3, 4, and 5 as determined from gill net, trap net, bottom trawl, and midwater trawl samples. Age and growth calculations indicated that females grew faster than males. However, the length-weight relation did not differ between sexes and was described by the equation: log W = ?5.4383 + 3.1987 log L. Some males became sexually mature at age 2 and all were mature by age 6. Females matured 1 year later than males. Three sizes of eggs were present in ovaries; the average total number was 127,000 per female for 20 females over a length range of 270 to 478 mm. Seasonal analysis of the ovary-body weight ratio indicated that spawning extended from June to August. A total annual mortality rate of 49% for drum aged 4 through 11 was derived from catch-curve analysis. Freshwater drum were widely distributed throughout Lake Erie in 1977–1979, the greatest concentration being in the western basin. They moved into warm, shallow water (less than 10 m deep) during summer, and returned to deeper water in late fall. Summer biomass estimates for the western basin, based on systematic surveys with bottom trawls, were 9,545 t in 1977 and 2,333 t in 1978.     

水-能源-粮食纽带关系定量研究方法综述

在总结水-能源-粮食纽带关系研究中, 使用频率较高或潜力较大的 8 种水-能源-粮食纽带关系定量研究方法为: 水-能源-粮食纽带关系工具 2.0( WEF Nexus Tool 2.0) ; 生命周期评价( LCA) ; 可计算的一般均衡模型( CGE) ; 系统动力学模型( SD) ; 气候、土地、能源与水资源策略( CLEWS) ; 基于社会生态系统代谢的多尺度综合评价( MuSIASEM ) ; 市场配置/ 市场配置系统集成模型( MARKAL/ TIMES) 和水资源评价规划模型-长期能源替代规划系统 ( WEAP2LEAP) 。通过总结各研究方法的产生、发展及特性, 并引用案例讨论其适用范围, 分析其优缺点和在使用 时需要注意的问题。在此基础上, 对未来水2能源2粮食纽带关系定量研究方法的发展趋势进行讨论, 认为伴随可持 续发展问题关注度的上升与水-能源-粮食纽带关系内在机理的挖掘, 未来的水-能源-粮食纽带关系定量研究方法将 更加注重量化的精确性和数据的互通以及跨学科研究和多方法的耦合。本文可为水-能源-粮食纽带关系定量研究方法的选择和更新优化提供参考。     

Survival,Growth, and Movement of Subadult Humpback Chub,Gila Cypha,in the Little Colorado River,Arizona

Ecologists estimate vital rates, such as growth and survival, to better understand population dynamics and identify sensitive life history parameters for species or populations of concern. Here, we assess spatiotemporal variation in growth, movement, density, and survival of subadult humpback chub living in the Little Colorado River, Grand Canyon, AZ from 2001–2002 and 2009–2013. We divided the Little Colorado River into three reaches and used a multistate mark‐recapture model to determine rates of movement and differences in survival and density between sites for different cohorts. Additionally, site‐specific and year‐specific effects on growth were evaluated using a linear model. Results indicate that summer growth was higher for upstream sites compared with downstream sites. In contrast, there was not a consistent spatial pattern across years in winter growth; however, river‐wide winter growth was negatively related to the duration of floods from 1 October to 15 May. Apparent survival was estimated to be lower at the most downstream site compared with the upstream sites; however, this could be because in part of increased emigration into the Colorado River at downstream sites. Furthermore, the 2010 cohort (i.e. fish that are age 1 in 2010) exhibited high apparent survival relative to other years. Movement between reaches varied with year, and some years exhibited preferential upstream displacement. Improving understanding of spatiotemporal effects on age 1 humpback chub survival can help inform current management efforts to translocate humpback chub into new locations and give us a better understanding of the factors that may limit this tributary's carrying capacity for humpback chub. Published 2014. This article is a U.S. Government work and is in the public domain in the USA.