VOC气体检测仪在进口废塑料检验中的应用

针对挥发性有机化合物(VOC)气体在现实中的危害,对废物原料检验的标准进行了探讨,对废物原料检验中如何进行VOC检测进行分析并提出建议。     

进口废旧塑料的现场鉴别

废塑料是废物原料的重要组成部分,近年来得到各界广泛的关注和重视。我国废塑料的进口量呈稳步增长的态势,出入境检验检疫部门作为进口废塑料的施检机构,必须了解废旧塑料知识,掌握废旧塑料鉴别的方法技巧,这是响应国家质检总局"科技兴检"战略、不断加强技术执法的必然要求。     

新版《国家危险废物名录》已施行 豁免管理环节需注意

<正>由环境保护部、国家发改委、公安部联合发布的2016年版《国家危险废物名录》(以下简称《名录》)2016年8月1日起开始施行。这是我国迄今为止发布的第三版危险废物名录。修改后的名录更加符合我国行业现状需要,方便企业和检验检疫部门对进口废物原料中夹杂危险废物的鉴别,加强对危险废物的管理控制。     

2009年天津口岸进口废塑料环保不合格情况分析

就2009年天津口岸进口废塑料环保不合格情况进行分析,归纳了其不合格原因、来源国家、境外供货企业及国内收货人的分布特点,结合天津东港检验检疫局对废物原料的监管和措施,对降低进口废物原料环保项目不合格率提出建议。     

进口废物原料国内收货人注册登记探讨

进口固体废物原料国内收货人注册登记是确保进口废物原料安全的重要工作。就进口固体废物原料国内收货人书面评审、现场评审以及后续监管中存在的问题进行了剖析和探讨,从严格企业准入门槛、开展废物原料流向管理、加强企业分类管理和后续监管工作等方面提出了相应的建议。     

进口可用作原料的固体废物检验检疫监督管理办法

<进口可用作原料的固体废物检验检疫监督管理办法>已经2009年5月26日国家质量监督检验疫总局局务会议审议通过,现予公布,自2009年11月1日起施行.     

国家质量监督检验检疫局《关于公布《进口可用作原料的固体废物国外供货商注册登记管理实施细则》的公告》

根据《进口可用作原料的固体废物检验检疫监督管理办法》（国家质检总局令）第119号,国家质检总局制定了《进口可用作原料的固体废物国外供货商注册登记管理实施细则》（以下简称“实施细则”）,现予公告。     

废轮胎加工变橡胶原料

香港每年约有100万条废轮胎弃置到堆填区。若把轮胎加工改造,可循环再造成橡胶原料。有港商两年前在内地设厂,开发这种废物利用的技术,现在正打算把技术带回香港,堆填区每年便可减省处理1万吨废物。 港商王亿刚半年前开始与环保署接触,讨论把循环再造废轮胎的技术引入香港。环保署日前推出“减少废物示范计划”,首次接受商业机构申请基金,王亿刚对计划十分有兴趣,并考虑申请基金。 循环再造废轮胎的技术,是利用机器把轮胎内的纤维排出,把剩下的橡胶磨成粉末,制成橡胶原料。王亿刚表示,这些由废轮胎制成的橡胶原料,可根据质素需要混合一般橡胶原料,适合制成各类橡胶制成品,甚至重新制成一条新轮胎。(陈亿)     

进口混合废金属中常见夹杂物有害性研究

结合天津地区进口混合废金属检验检疫工作实际,对其中常见夹杂物的有害性进行研究。对检验过程中发现的油封电缆、沥青缆及隔热棉中含有疑似有害物质进行取样,送实验室检测多氯联苯、重金属、多溴联苯和石棉等有害物质的含量。结果显示全部送检样品中:有9个样品未检出有害物质,4个样品中检出含铅,1个样品检出含五氯联苯,均未超过相关标准限值。希望通过对混合废金属产品的危害性进行风险分析,以便将来更好地指导进口废金属的现场检验检疫工作,同时为环控标准和检验检疫规程的修订和完善提供依据。     

国外可燃废物在水泥生产中的利用现状

首先介绍了工业发达国家利用可燃废物作为燃料生产水泥的现状,然后以废轮胎和废机油为例,说明可燃废物在水泥窑中的燃烧应用,最后指出我国这方面工作与国外的差距以及做好这项工作的必要性.     

铅蓄电池行业清洁生产要点探讨

针对我国铅蓄电池行业现状,从铅蓄电池生产所用原辅材料、生产工艺装置、过程控制、末端治理、职业卫生、废电池回收、生产能力要求及布局等多个角度出发,对该行业开展清洁生产的各个要点环节进行了探讨研究。     

生活垃圾焚烧发电项目的竣工环保验收

根据生活垃圾焚烧发电项目的特点,归纳了此类项目环境保护验收工作的法规依据、验收程序和重点内容,并提出了相应的污染防治措施。     

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。     

Temporary stabilization of air pollution control residues using carbonation

Carbonation presents a good prospect for stabilizing alkaline waste materials. The risk of metal leaching from carbonated waste was investigated in the present study; in particular, the effect of the carbonation process and leachate pH on the leaching toxicity of the alkaline air pollution control (APC) residues from municipal solid waste incinerator was evaluated. The pH varying test was conducted to characterize the leaching characteristics of the raw and carbonated residue over a broad range of pH. Partial least square modeling and thermodynamic modeling using Visual MINTEQ were applied to highlight the significant process parameters that controlled metal leaching from the carbonated residue. By lowering the pH to 8-11, the carbonation process reduced markedly the leaching toxicity of the alkaline APC residue; however, the treated APC residue showed similar potential risk of heavy metal release as the raw ash when subjected to an acid shock. The carbonated waste could, thereby, not be disposed of safely. Nonetheless, carbonation could be applied as a temporary stabilization process for heavy metals in APC residues in order to reduce the leaching risk during its transportation and storage before final disposal.     

Raw material potential of recyclable materials for fiber composites: a review study

The aim of this study is to investigate waste streams as a source of recyclable raw material for fiber composite production. Globally, vast volumes of waste are produced daily that are not recycled effectively. In this work, three different raw material sources are examined; industrial, construction and municipal solid waste streams. All three sources produce wastes that are currently underutilized. Usage areas for the waste material include use as a reinforcing fiber, as part of the plastic matrix or as a filler. The industrial sector produces more homogenous waste, while waste from municipalities is mixed. Irregular material flow, the varying condition of the waste and different pretreatments used pose difficulties for recycling. Furthermore, some materials are industry-specific and may be produced in only certain areas. Despite these difficulties, huge amount of potentially useful exploitable waste is available and using different waste streams as a part of wood-plastic composite production can reduce waste volumes disposed to landfill.     

Effect of inoculation in composting processes: modifications in lignocellulosic fraction

Three microbial isolates, identified as Bacillus shackletonni, Streptomyces thermovulgaris and Ureibacillus thermosphaericus were tested as inoculants in composting processes in relation to their capacity to improve lignocellulose degradation. Different wastes from agricultural activities were used as raw material for the heaps: pepper plant waste (PPW) as the main component and olive-oil mill waste (OMW), almond shell (AS), pruning waste (PW) and rice straw (RS) as additives. Cellulose was more extensively degraded than hemicellulose and lignin, although the use of inoculants (B. shackletonni and S. thermovulgaris) improved the action of the autochthonous microbiota just in the AS heaps. A higher efficiency was observed for lignin, since lower concentrations of this polymer were detected in the inoculated heaps in relation to control heaps. U. thermosphaericus was the most efficient microorganism since inoculation with this strain decreased the final lignin content in a range between 17.23% and 24.34%. S. thermovulgaris and B. shackletonni led to a higher reduction of the lignin levels in the OMW and PW heaps (14.25% and 19.07% less lignin than control heaps) and OMW (13%), respectively. The composting process can therefore be improved by means of inoculation if the microorganisms used for this purpose are appropriate for the characteristics of the raw material.     

A Study of Adsorption Behaviour of Cu(II) on Hydroxyapatite-Coated-Limestone/Chitosan Composite

Journal of Polymers and the Environment - In this experiment, chitosan (CS), waste limestone and diammonium hydrogen phosphate were used as raw materials to synthesize HAp-coated-stone...     

我国脱硫灰渣作为水泥原料及混合材的综合利用现状

阐述了固废物脱硫灰的成分与特点以及目前我国对脱硫灰渣作为水泥原料和混合材的利用现状,并分析了影响脱硫灰渣利用的主要问题和资源化利用提出的建议,对脱硫灰渣作为水泥原料及混合材的进一步发展和推广提供一些有益的参考。     

Site investigation on medical waste management practices in northern Jordan

This study investigated the medical waste management practices used by hospitals in northern Jordan. A comprehensive inspection survey was conducted for all 21 hospitals located in the study area. Field visits were conducted to provide information on the different medical waste management aspects. The results reported here focus on the level of medical waste segregation, treatment and disposal options practiced in the study area hospitals. The total number of beds in the hospitals was 2296, and the anticipated quantity of medical waste generated by these hospitals was about 1400 kg/day. The most frequently used treatment practice for solid medical waste was incineration. Of these hospitals, only 48% had incinerators, and none of these incinerators met the Ministry of Health (MoH) regulations. As for the liquid medical waste, the survey results indicated that 57% of surveyed hospitals were discharging it into the municipal sewer system, while the remaining hospitals were collecting their liquid waste in septic tanks. The results indicated that the medical waste generation rate ranges from approximately 0.5 to 2.2 kg/bed day, which is comprised of 90% of infectious waste and 10% sharps. The results also showed that segregation of various medical waste types in the hospitals has not been conducted properly. The study revealed the need for training and capacity building programs of all employees involved in the medical waste management.