生活垃圾焚烧飞灰处理处置政策及发展分析

论述了我国关于生活垃圾焚烧飞灰处理处置的政策发展,分析了国内垃圾焚烧飞灰处置技术特点及资源化应用情况,指出垃圾焚烧飞灰处理处置存在的障碍和应对措施,以期为垃圾焚烧飞灰无害化处置提供参考。     

生活垃圾焚烧处理技术发展分析

综述了国内外的城市生活垃圾焚烧处理概况,探讨了生活垃圾焚烧处理与环境的关系,介绍了生活垃圾焚烧处理工艺,并对我国生活垃圾焚烧处理技术现状进行了分析。     

Remedia~滤袋——一种去除二噁英的新技术

随着垃圾焚烧发电工程的兴起,对尾气中二英的控制处理提出了严格的要求。基于"表面过滤"及"催化过滤"相关理论成功开发出的Remedia覆膜催化滤袋产品,为最严格的粉尘排放及二噁英的控制提供了新技术。     

垃圾焚烧飞灰的处置及资源化利用工艺研究

论述了目前国内对于生活垃圾焚烧飞灰处理处置及利用的情况,介绍了一种垃圾焚烧飞灰资源化技术的工艺流程、特点以及应用情况,为改善生活垃圾焚烧飞灰利用技术水平有限的局面,避免其造成二次污染环境风险提供了技术参考。     

垃圾焚烧飞灰处理技术研究进展

垃圾焚烧飞灰是公认的危险废物,其处理处置技术的研究已成为环境领域的热点。综述了垃圾焚烧飞灰处理领域国内外的研究现状和发展趋势,对垃圾焚烧飞灰无害化处理和资源化利用技术的研究提供了参考。     

二恶英控制技术的研究现状及发展前景

分析了垃圾焚烧过程中产生的二恶英的危害以及目前世界各国对其控制处理技术的研究现状。重点讨论了二恶英新控制技术——催化分解二恶英滤料的功能特点。该技术具有对垃圾焚烧尾气中颗粒物的高效捕集和二恶英的高效分解的双重功效,并且为新型过滤材料的开发开辟了新途径。     

垃圾焚烧过程中二噁英污染控制技术

本文对垃圾焚烧过程中如何控制二噁英的产生及焚烧后的残渣、飞灰的处理技术进行了综合分析，并对适合我国国情的垃圾焚烧技术作了初步探讨。     

垃圾焚烧过程中二恶英污染控制技术

本文对垃圾焚烧过程中如何控制二恶英的产生及焚烧后的残渣、飞灰的处理技术进行了综合分析,并对适合我国国情的垃圾焚烧技术作了初步探讨。     

HWM城市生活垃圾焚烧发电成套技术

由伟明集团有限公司开发的HWM城市生活垃圾焚烧发电成套技术,适用于生活垃圾焚烧.     

新型脱硫除尘一体化设备概述

阐述了生活垃圾的处理现状,分析了国内外垃圾焚烧技术,介绍了一套新型的脱硫、脱硝除尘一体化设备及垃圾焚烧烟气处理工艺,能大大提高净化效率并减少设备的占地面积。     

Piggery waste treatment by anaerobic digestion and nutrient removal by ionic exchange

Piggery wastes must be treated before their disposal. The high solids content and high chemical oxygen demand of piggery wastes indicated that anaerobic biological treatment could be successfully applied as primary treatment. For that reason, a comparison between upflow anaerobic sludge bed reactor (UASB) and anaerobic fixed bed reactor (AFBR) at a similar organic volumetric loading rate of 5 kg DQO/m³ day was carried out. 60% of the piggery waste COD was removed with the AFBR compared to 40% with the UASB, thus showing a better performance of the AFBR. After 1-h sedimentation secondary process, both anaerobic effluents were treated by ionic exchange with natural zeolite due to their high values of ammoniacal nitrogen (NH⁺₄ plus free NH₃). The high removal of nutrients reported (90%) shows zeolite to be a good choice as tertiary treatment.     

Water treatment by aquatic ecosystem: Nutrient removal by reservoirs and flooded fields

Potential use of reservoirs and flooded fields stocked with aquatic plants for reduction of the nutrient levels of organic soil drainage water was evaluated. The treatment systems include 1) a large single reservoir (R1) stocked with waterhyacinth (Eichhornia crassipes), elodea (Egeria densa), and cattails (Typha sp.) in series; 2) three small reservoirs in series with waterhyacinth (R2), elodea (R3), and cattails (R4), grown in independent reservoirs; 3) a control reservoir (R5) with no cultivated plants; 4) a large single flooded field planted to cattails; 5) three small flooded fields in a series planted to cattails; and 6) a flooded field with no cultivated plants. Drainage water was pumped daily (6 hours a day, and 6 days a week) into these systems for a period of 27 months at predetermined constant flow rates. Water samples were collected at the inlet and outlet of each treatment system and analyzed for N and P forms.The series of reservoirs stocked with aquatic plants functioned effectively in the removal of N and P from agricultural drainage water, compared to a single large reservoir. Allowing the water to flow through the reservoir stocked with waterhyacinth plants with a residence time of 3.6 days was adequate to remove about 50% of the incoming inorganic N. Allowing the water to flow through a series of two small reservoirs, R2 and R3, with a residence time of 7.3 days was necessary to remove about 60% of the incoming ortho-P. Flooded fields were effective in the removal of inorganic N, but showed poor efficiency in the removal of ortho-P.Florida Agricultural Experiment Stations Journal Series No. 2320.     

石油污染土壤中石油含量对玉米的影响

为了弄清石油污染土壤中石油类对农作物的影响,吉林油田进行了一年的田间玉米种植试验。在不同浓度水平,分别对玉米出苗率、可见外观特性、百粒重、产量和品质进行了较系统的观察、监测、类比分析。结果表明,土壤中石油含量的不同,对玉米生长过程各项指标有不同的影响。并找出吉林油田土壤—玉米系统中影响玉米生长及其产量的土壤临界含油量。     

昆虫唤醒的记忆

展读新版法布尔的十卷本《昆虫记》，心绪仿佛一下回到那几乎是与虫为伍、以虫为乐的孩提时代。在工业化不太发达、农药化肥不太普及的３０年前，我还是个小学生，记得那时生活环境中的昆虫五花八门、种类繁多，什么屎壳郎、磕头虫、花珠珠、花手绢、臭大姐、喇喇姑、知了、刀螂、天牛、马蜂、扑棱蛾子……不胜枚举，仅晴蜒就分老子儿、膏药、灰儿、黄二、黑锅底、红辣椒、小日本儿等，养点儿蛐蛐儿、油葫芦什么的，更是男孩子的拿手戏。那时，我是将昆虫当成玩意儿、当成伙伴儿，甚至有一回还因把一只大豆虫塞进女同学的铅笔盒、吓得她上课…     

传统文化之徽州传统民居建筑 伦理浇灌的徽州民居

正徽州是理学的崛起之地,徽州人深受理学的影响和滋润,古民居建筑的每一个布局架构都强烈突显出"理"的说教意味,有着深厚的社会伦理功能。徽民居围墙一般很高。男人大都在外经商,此墙便起着防盗、对女性禁锢的作用。但单纯的高,则给人阴沉压抑的感觉,故而在围墙上又常用黟青石双面镂空雕刻着两扇窗,图案往往是喜鹊登梅,喻寒尽春来的喜讯,既是在家妻子儿女的向往,又是对在外家人的祝福;两家