燃煤锅炉湿法除尘废水循环回用后的水质处理工艺和技术研究

调查分析了当前应用于中小型锅炉湿法除尘废水循环回用治理的技术,根据除尘废水循环回用后的水质和工艺特点,提出将除尘循环水净化同燃煤烟气脱硫除尘联合进行以及利用工业碱水,炉渣处理除尘废水的技术和工艺     

新型手烧锅炉除尘器的研究与开发

针对手烧锅炉的烟尘特性,开发了一种新型湿式除尘器。运行测试结果表明,该装置能够有效地净化手烧燃煤锅炉的烟尘,避免除尘废水的二次污染。     

超重力旋转填料床在环境工业中的应用

超重力旋转填料床是一种突破性的过程强化新设备,在环保、化工、材料、能源等工业领域有广阔的商业化应用前景。笔者概要介绍了该项新技术的作用原理和基础理论研究及该技术在环境工业中废水废气治理中的应用。     

湿法除尘的发展及其效率的探讨

简要分析了除尘设备的发展现状；结合我国经济发展水平和以燃煤为主的能源结构，提出了湿法除尘是我国当前除尘设备发展的主要方向；总结了湿法除尘具有较高除尘效率的主要因素及其局限性；提出了以质量浓度百分比标示除尘效率出现的误区，同时对接近百分之百的除尘效率提出了质疑。     

电除尘器在唐钢2560m^3高炉出铁场除尘中的应用

根据出铁场烟尘特性,探索大型高炉出铁场除尘方式中更为有效、可靠的方法,推动我国大型高炉出铁场除尘技术的发展,结合唐钢2560m^3高炉出铁场实际,阐述了唐钢2560m^3高炉出铁场除尘器成功经验,可供类似工程设计参考。     

袋除尘技术的进步及在立窑水泥厂的应用（上）

改革开放以来,我国的水泥工业取得了巨大的发展。据１９９５年底的统计,全国共有水泥生产企业８４３５个,年生产能力５９亿吨,水泥工业所排放的粉尘已超过１０００万吨,居全国各行业第一位。这其中立窑水泥的产量占８０％,粉尘排放量占９０％以上,粉尘散失量占其...     

袋除尘技术的进步及在立窑水泥厂的应用（下）

三、磨机袋除尘技术1．磨内通风用袋除尘技术开流磨或提升式循环磨的排气主要用于磨内通风,废气含尘浓度大多在１５０９／Ｎｍ3以下,废气温度在１００℃以下,生料磨废气中的水分较大,一般的低能清灰除尘器很难适应这种废气性质。如过去水泥厂广泛应用的ＦＤ系列、ＺＣ系列反吹风袋除尘器和分室脉动反吹除尘器的使用效果都比较差,甚至一些脉冲除尘器如ＭＣ脉冲除尘器的使用效果也不好。新型的脉冲清灰除尘器,离线清灰的如气箱脉冲除尘器,在线清灰如Ｃｏａｎｄａ喷吹袋除尘器采用了先进的滤料技术、清灰技术、控制技术,已经完全能够满…     

我国电除尘产业的进展,存在问题及对策

我国电除尘技术的发展起步晚,发展快,潜力大。在已召开过七届的国际电除尘会议上,我国已三次有代表进入仅有13名理事的国际电除尘执行理事会,这说明我国电除尘界在国际上已有一定的地位。在1998年9月召开的第七届国际电除尘(韩国)会议上,我国出席会议的代表人数占全体会议...     

袋式除尘行业的新发展

一、袋式除尘行业发展动态１．２００１年袋式除尘器几家骨干企业生产、销售形势都比较好，有数家企业年总产值迈过了亿元大关，达到历史上最好水平。出口国外，甚至出口到发达国家的产品也有较大的增长。这说明我国生产袋式除尘器的骨干企业的技术水平及装备设施和产品质量都已达到国际上的先进水平。但我国袋式除尘器产品价格只有发达国家同类产品的１／３～１／１０，按国外企业产品价格的同比算法，这些企业的年产值应该是数亿元或达１０亿元。２．袋式除尘器有望开拓我国电力市场。内蒙呼和浩特热电厂使用的煤炭中SO２含量较低，烟气…     

低压脉冲除尘器(长袋式)在水泥机立窑除尘中的应用

介绍了长袋低压脉冲袋式除尘器的工作原理，比较客观详实的分析了在实际除尘过程中的前景及应用除尘效果。实践证明，袋式除尘器在水泥机立窑烟气除尘中适应性强，除尘效率可达99％以上，经济效益显著，是一种较理想的除尘设备．尤其适合在水泥行业中的应用。     

海水养殖室内培育场出水的处理及终水回用的探讨

鱼、虾、贝等人工育苗场的出水中含有大量的排泄物、残饵、残余药物及病原微生物,但目前国内几乎所有的鱼苗场的出水均采用直接排海的办法,对近海生态环境的破坏日益严重,妨碍水产养殖的可持续发展。育苗场内用水一般经过热处理,其出水直接排海浪费大量热能,所以出水的处理及终水回用的研究应该引起重视。     

多举措集成提升电厂节水减排成效

本着分级使用、减少排放、综合利用的原则,根据现场实际情况进行综合治理,重点是增加并完善梯级利用程度,提高水资源利用效率。对除灰、输煤废水这类浊度较大的废水进行自循环利用,禁止外排;完善循环水排污水利用系统;对高含盐量化学废水进行综合利用,达到既减排又可以改善废水水质的目的。     

合理控制钻井废水回用率以减轻环境污染

不合理地片面强调钻井废水的回用，是造成废水处理质量不高的重要原因之一。现在根据钻井生产的特点，分析讨论了钻井废水回用率合理控制的必要性，同时提出分阶段控制回用率的方法。现场实践证明，在这个方法实施的基础上，再加上一些有效的辅助措施，能有效地提高钻井废水达标率并减轻其对环境的污染。     

WASTE WATER REUSE IN PHOENIX-HOW VIABLE IS IT?1

ABSTRACT: The Phoenix metropolitan area has a unique combination of circumstances which makes it one of the prime areas in the Nation for waste water reuse. Overriding all of these conditions is the long-term inadequacy of the existing water supplies. The Salt River Valley has a ground water overdraft of about 700,000 acre feet per year. To help alleviate this situation, the Corps of Engineers in conjunction with the MAG 208 is looking at ways to reuse a projected 2020 waste water flow of 340,000 acre feet per year. Reuse options identified include ground water recharge, agricultural irrigation, turf irrigation, recreational lakes, fish and wildlife habitats, and industrial cooling. These look nice on paper but before they can be implemented, some hard questions have to be answered, such as: How acceptable are local treatment plants when 15 years ago there was a major push to eliminate local plants; is the Phoenix area ready for reuse in urban areas; what are people willing to pay for water; who benefits if a city goes to ground water recharge; how much agriculture will be left in the area by 2020? These and other questions must be resolved if reuse is to become a viable option in water resource planning in the Phoenix area. Summary. Large scale reuse of waste water conforms with the national goal of better resource management through recycling. The Phoenix metropolitan area has a unique combination of circumstances which makes it one of the prime areas in the nation for waste water reuse. Some of the most notable conditions are: the existence of a large and rapidly growing urban area which is in the process of planning for future waste water management systems; the existence of agricultural areas which are projected to be farmed well into the future, and the existence of constructed and planned major recreational systems such as Indian Bend Wash which can use recycled waste water; the existence of extensive depleted ground water aquifers; the need for a dependable source for the cooling of the Palo Verde Nuclear reactors; and finally, overriding all of this, the long-term inadequacy of the existing water supplies. Given this, one would expect to find total reuse within the Phoenix metropolitan area. Reuse is taking place with irrigation and nuclear power cooling to the west but there is no long term plan which looks at the Valley as a whole and considers waste water as part of the Valley's water resources. The Corps 208 plan is looking at waste water in this manner but initial analysis shows that although reuse is technically feasible there are many financial, social, institutional, and political questions still to be answered. These include: determining the value of existing diminishing water sources and what people are willing to pay for the next source of water; are people willing to identify priority uses of water for the area so that water of varying quality is put to its highest and best use; will the present institutional boundaries remain to create water-rich and water-poor areas; and will legislation be forthcoming to simplify the complex surface and ground water laws that presently exist? The Corps 208 study will not be able to answer these questions, but the goal at the moment is to identify feasible reuse systems along with decisions the public, owners, agencies, and politicians must make to select and implement them. If some sort of logical process is not developed and public awareness not increased, the chance for a long-term plan to utilize waste water as a major element in the Phoenix area water resource picture, may be missed.     

复叠机组低温机排气冷却器的必要性及计算

复叠机组低温机排气温度较高,容易引起各种损害,特别是造成分油不良,油在蒸发器存入过多,影响换热,从而使蒸发温度降低,使回油更加困难,且较低的蒸发温度会造成更大的排气过热,如此形成恶性循环.因此在低温机排气加装排气冷却器,及冷却器的正确选择计算是重要的.本文就此项问题提出一种冷却器结构及计算方法.     

石化废水脱氮技术现状分析

针对石化废水脱氮的现有技术进行归纳,并对各种方法的优缺点进行了对比分析,探讨了目前石化废水的脱氮技术现状和发展趋势。结论是:目前还没有一种通用的方法能处理所有氨氮废水,必须针对不同废水选择不同的技术及工艺。为了更有效地处理废水,应联合使用多种方法和工艺,这已是目前废水处理的一种趋势。     

燃煤锅炉湿式脱硫除尘一体化设备的综合分析

本文对湿式脱硫除尘一体化设备的结构和性能进行了较为全面的分析,指出了该设备存在的诸多弊病,提出了解决方案--脱硫、除尘分体组合式的思路.     

POTENTIALS FOR REUSE OF WASTEWATER IN NORTH CENTRAL TEXAS1

ABSTRACT There are several possible ways in which wastewater from municipalities may be reclaimed and reused so as to minimize the need for imported water in North Central Texas. The rationale for reuse is enhanced by the fact that new water quality requirements in the Trinity River system will necessitate a very high degree of treatment at municipal sewage plants, just for discharge to surface streams. The largest potential market for municipal effluent is the steam-electric power industry. Within the next decade the generating capacity for electric power in North Central Texas will have to be more than doubled to meet increasing demand. Adequate supplies of condenser cooling water for such expansion will be difficult to obtain and assure. New large power stations might advantageously be located adjacent to municipal wastewater treatment plants, to utilize effluent as make-up water for cooling towers. Experience elsewhere has shown that well-treated wastewater can be used for cooling tower make-up with a minimum of trouble, with a considerable saving in overall cost, and with conservation of pristine water for other uses.     

氨法在烧结烟气脱硫中的应用

在钢铁工业排放的污染物中,烧结烟气中的二氧化硫和焦化废氨水等都是难以处理的污染物。利用焦化废氨水吸收烧结烟气中SO2的氨一硫铵工艺具有脱硫率高、运行可靠、投资低、副产品可以回收等优点,在脱硫的同时也去除了焦化废水中的氨污染,是一种以废治废、有应用前景的新方法。本文介绍了采用焦化废氨水吸收烧结烟气中的SO2的治污方法原理,并对其工艺流程、特点及运行费用等作了分析。     

解析电除尘烟温与粉尘特性的最佳结合点

分析了电除尘烟温对粉尘特性的影响,以及烟温对电除尘器效率的影响,从中找出烟温调节与粉尘特性的最佳结合点。利用烟温调节的理念,应用余热利用节能电除尘技术对电除尘器进行提效改造,通过实例证明,这既可扩大电除尘器适应性和提高电除尘效率、满足低排放要求,又可节省电煤消耗和降低电耗,具有环保与经济的双重效益。