聚醚多元醇生产废水的回收利用

发明提供了一种聚醚多元醇生产废水的回收利用方法：聚醚多元醇牛产废水进入调节池，调节池依次与隔油池、投配池、厌氧反应器、好氧接触氧化池和沉淀池连接；沉淀池的上清液自流进入光催化氧化反应器，污泥同厌氧反应器的污泥一起进入污泥浓缩池，然后进入脱水器；光催化氧化反应器与连续超滤处理器连接，然后再与反渗透处理器连接；通过加药箱向投配池添加药剂；通过风机分别向好氧接触氧化池和光催化氧化反应器提供氧气。     

环己烷氧化废碱液的回收利用

介绍了一种从环己烷氧化废碱液中回收高价值有机酸的新方法。用氢氧化钠碱熔处理废碱液中的羟基己酸及其聚合物，可使废碱液中己二酸的质量分数由3．18％提高到8．74％，且环境效益和经济效益显著。     

挥发性有机化合物处理技术的研究进展

简要介绍了挥发性有机化合物（VOCs）的来源、危害以及控制的意义，对VOCs现有处理技术从回收方法和消除方法两个方面进行了详细评述，并指出其优势和不足。同时，着重阐述了光催化氧化法以及变压吸附技术的研究进展，并提出了进一步研究的方向。     

湿法脱硫工艺的控制氧化

控制氧化是通过控制脱硫洗涤中亚硫酸盐的氧化率，减少或消除湿法石灰石脱硫系统设备结垢的有效方法。本文介绍了强制氧化和抑制氧化的主要原理及应用情况，并对两种方法进行了简单的经济比较，提出选用时应考虑的有关因素。     

化学镀铜废液的处理方法

该发明涉及降解化学镀铜废液中的有机污染物并回收正磷酸盐的一种化学镀铜废液处理方法。通过氧化方法将化学镀铜废液中的有机污染物氧化分解,同时把废液中的次磷酸根和亚磷酸根氧化成正磷酸根,正磷酸根与废液中的铜离子产生化学反     

湿式氧化法处理乐果废水

采用湿式氧化法对乐果生产废水进行预处理,氧化温度２３０－２４０℃,压力６．０－７．０ＭＰａ,废水停留时间１ｈ在此条件下,有机磷的去除率可达９５％以上,有机硫的去经可达８２％,废水经湿式氧化,回收磷酸盐后再经生化处理,保持ＣＯＤ与有机硫的比值大于２５：１,ＣＯＤ去除率可达９０％。     

超声强化高级氧化技术降解水中有机污染物的研究进展

介绍了用于降解水中有机污染物的超声强化技术，分析了超声与臭氧氧化、Fenton试剂氧化和光催化氧化等高级氧化技术联用的机理，综述了这些联用技术在降解有机污染物方面的研究进展，并展望了超声强化高级氧化技术的发展前景。     

模拟轻质油和汽油的氧化脱硫技术研究进展

氧化脱硫技术是一种将有机硫化物转化成极性较强的物质，再通过萃取或吸附等将其分离除去的方法。以过氧化氢-有机酸氧化体系、过氧化氢-杂多酸氧化体系、过氧化氢-分子筛氧化体系、过氧化氢-光催化氧化体系、过氧化氢-相转移剂催化氧化体系、油溶性氧化体系、超声波、等离子体、臭氧等为例，对模拟轻质油和汽油氧化脱硫技术的研究进展进行了综述。     

氧化苯乙烯生产中副产物的回收利用

汉中市日用化工厂氧化苯乙烯生产车间的三个主要工序,在生产过程中均有部分副产物产生。对于这些副产物,将其外排势必会污染环境,但至今又未找到合适的处理方法,只是给附近的农户作为燃油用,这样,仍会造成一定的环境污染。我们对这些副产物进行了回收利用的初步探索,并获得了一定的效果。试验结果表     

二甲基二硫生产废水处理技术

通过对二甲基二硫生产废水产生过程及水质的分析,提出了酸化水解-氧化絮凝的废水处理流程.COD、S2-的去除率均为99.9%以上.回收产品Na2S、硫磺、芒硝价值大于废水处理成本,可获得一定的经济效益.     

有机氯硅烷生产中高沸物的综合利用方法

介绍了直接法生产有机氯硅烷的副产物－氯硅烷高沸点残余物（高沸物）的主要组成，综述了国内外对高沸物的综合利用方法，并对高沸物的综合利用提出了建议。     

A review of corn masa processing residues: generation, properties, and potential utilization

The production of corn masa-based products in the US has been increasing over the last several years, and as a result, so has the quantity of waste materials being generated from this industry. Although currently landfilled, these byproduct streams may have potential for value-added processing and utilization, which are options that simultaneously hold the promise of increased economic benefit for masa processors as well as decreased potential pollution for the environment. Fundamental to any byproduct development effort is knowledge of the characteristics of the residue stream, because physical and chemical properties are vital for the proper design of subsequent processing operations and applications. Data for masa byproduct materials are currently not readily available, however. Thus, the objective of this study was to fully investigate, review, and summarize the existing literature in order to develop a comprehensive knowledge base for these residue streams. The most substantial findings from this study were that masa residues currently are not being utilized as coproducts, but instead are being landfilled; they have a high fiber content, and thus much untapped potential exists for its extraction and value-added utilization vis-à-vis human and industrial applications, including phytosterol and ethanol production. It was also determined that masa byproducts, due to the high fiber content, may also be suitable for use as livestock feed additives, especially for ruminant animals that can digest these materials. Furthermore, due to substantial calcium content, masa byproducts could also potentially be used as a calcium resource. Under current processing practices, though, these residues have very high moisture contents. Before they can be effectively and economically utilized, they must be dehydrated in order to reduce transportation costs, decrease microbial activity, and increase shelf life.     

Renewable Resources and Enzymatic Processes to Create Functional Polymers: Adapting Materials and Reactions from Food Processing

We are exploiting materials and concepts from food science to create functionalized, environmentally friendly derivatives of the biopolymer chitosan, a byproduct of seafood processing. Functional groups are grafted onto chitosan using tyrosinase, the enzyme responsible for food browning. The functionalizing groups studied include low-molecular-weight phenols derived from natural sources and high-molecular-weight proteins. The approach of using low-molecular-weight phenols to functionalize chitosan is illustrated with arbutin, a natural phenol found in pears. Results demonstrate that tyrosinase initiates reactions that lead to the conversion of arbutin–chitosan solutions into gels. These gels can be rapidly broken by treatment with the chitosan-hydrolyzing enzyme chitosanase, demonstrating that the chitosan derivatives remain biodegradable. We briefly review other studies in which low-molecular-weight natural phenols are enzymatically grafted onto chitosan to confer functional properties. The creation of co-polymers is illustrated by results in which tyrosinase is used to couple gelatin onto chitosan. Gelatin is a proteinaceous byproduct of meat production. The tyrosinase-generated gelatin–chitosan conjugates have been observed to offer interesting rheological and thermal properties. These results demonstrate the potential for using renewable resources and enzymatic processing to create environmentally friendly polymers with useful functional properties.     

湿式吸收法同时烟气脱硫脱氮技术进展

同时烟气脱硫脱氮技术是燃煤烟气SO2和NOx污染控制的发展趋势和研究热点。系统地介绍了氧化吸收法、络合吸收法等能实现同时脱硫脱氮的吸收法烟气净化技术，分析了其特点和存在的问题，并从技术集成、副产物利用、与现有脱硫装置的配套和理论研究等方面提出了其研究方向。     

Study on the kinetics of the conversion of Moroccan phosphogypsum into X2SO4 (X = Na,NH4)

Journal of Material Cycles and Waste Management - Phosphoric acid production industries use the wet process, which leads to enormous quantities of phosphogypsum (PG) as a byproduct. The discharge...     

Orange Juice Processing Waste as a Biopolymer Base for Biodegradable Film Formation Reinforced with Cellulose Nanofiber and Activated with Nettle Essential Oil

Journal of Polymers and the Environment - Concerns about environmental problems have led to the development of biodegradable packaging. Food wastes as a byproduct could be a good source for...     

已二酸生产副产物——混合二元酸的综合利用

采用一水合硫酸氢钠作为催化剂，催化己二酸生产副产物——混合二元酸与甲醇反应合成混合二元酸二甲酯。优化工艺条件为：混合二元酸加入量0．1mol，无水甲醇加入量0．5mol，一水合硫酸氢钠加入量4．0g，环己烷加入量20mL，反应时间1．5h。合成混合二元酸二甲酯的酯化反应收率大于97％。经气相色谱检测，产物中酯的质量分数为98．91％。一水合硫酸氢钠可重复使用3次。     

高纯二氧化锆生产过程中污染的防治

对高纯二氧化锆的生产工艺进行了改革,采用了新型反应器及胶凝除硅,直接酸溶重结晶,直接煅烧等技术,降低了原材料消耗及能耗,减少了废液排放量,并将回收的废物加工成副产品白炭黑,实现了在生产过程中防治污染。     

Extraction of Lignosulfonate from Black Liquor into Construction of a Magnetic Lignosulfonate-Based Adsorbent and Its Adsorption Properties for Dyes from Aqueous Solutions

Journal of Polymers and the Environment - Lignosulfonate, one of the lignin derivatives, was extracted from the black liquor as a byproduct of the wood and paper industry. It was used to prepare...     

Potential benefits and risks of land application of sewage sludge

Sewage sludge, also referred as biosolids, is a byproduct of sewage treatment processes. Land application of sewage sludge is one of the important disposal alternatives. Characteristics of sewage sludge depend upon the quality of sewage and type of treatment processes followed. Being rich in organic and inorganic plant nutrients, sewage sludge may substitute for fertilizer, but availability of potential toxic metals often restricts its uses. Sludge amendment to the soil modifies its physico-chemical and biological properties. Crop yield in adequately sludge-amended soil is generally more than that of well-fertilized controls. Bioavailability of metals increases in sludge amended soil at excessive rates of application for many years. Plants differ in their abilities to absorb sludge-derived metals from the soil. The purpose of this paper is to review the available information on various aspects of sewage sludge application on soil fertility and consequent effects on plant production to explore the possibility of exploiting this byproduct for agronomy and horticulture.