高浓度有机制药废水的中试处理

采用水解-厌氧-好氧生化新工艺,较系统地对抗生素工业废水和麻黄素植物提取废水中有机物的降解进行中试实验,验证实验室试验所采用的预处理、温度、pH值、水力停留时间、进水有机物浓度等参数对生化处理工艺的影响,中试规模为3m3/d。实验结果表明,在中试稳定运行时,废水COD总去除率可达到97.6%,经混凝处理出水COD平均浓度可达到地方的排放要求(COD≤300mg/L)。

高浓度混合制药废水的中试处理

采用水解 厌氧 好氧生化新工艺 ,较系统地对抗生素工业废水有机物的降解进行中试实验 ,验证实验室试验所采用的预处理 ,温度 ,pH值 ,水力停留时间 ,进水有机物浓度等因素对生化处理工艺的影响 ,中试规模为3t/d .试验结果表明 ,在中试稳定运行时 ,废水COD总去除率可达到 97 6% 。

强化气浮工艺处理太湖流域微污染原水效果的中试研究

针对典型的太湖流域微污染原水,试验对比了沉淀与气浮工艺的处理效果,发现气浮工艺更适宜;并以气浮工艺为主体进行中试研究,寻找一种最为适合的强化气浮工艺。试验对比了不同预处理对气浮工艺的强化效果,研究发现高锰酸钾预处理能有效除藻,且有利于消毒副产物生成潜能的去除,而生物预处理在氨氮等去除方面有绝对优势,活性炭预处理在试验条件下效果不明显。

微电解-生化组合工艺处理氯丁橡胶生产废水

采用微电解-水解-厌氧-好氧生化新工艺对氯丁橡胶有机废水进行中试,结果表明,在中试稳定运行时,废水COD总去除率可达97.6%,出水COD平均浓度在300mg/L以下。

给水常规处理及强化混凝工艺中试装置的设计及运行

为提高合肥市居民饮用水的水质,根据本地原水的水质特征,我们设计和制作一套中试水处理装置,主要由常规水处理工艺和微涡强化混凝工艺构成。设计的常规水处理工艺包括机械混凝、斜管沉淀和石英砂过滤。设计的强化混凝工艺主要包括改造常规机械搅拌桨板和增设管道网格反应器两方面。实验结果表明:相对于传统工艺,强化混凝有较好的处理效果,形成矾花密实易沉降,能减轻滤池负担并且反应时间缩短。

新型塔式垃圾动态堆肥系统的中试研究（上）

设计了一种新型的塔式垃圾动态堆肥系统，研制出了两种主要设备（复合式振动滚筒破碎筛分机与翻堆出料机），建造了塔式发酵仓．对全系统进行的中试运行与测试分析表明城市垃圾能够在该系统中进行快速高效的一次发酵，达到了预期的效果．

电絮凝法处理催化剂高悬浮物污水试验研究

研究采用以电絮凝技术为核心,结合了加药软化、快速沉淀、多介质过滤等工艺的组合技术方法处理催化剂高悬浮物废水,脱除悬浮物,降低废水浊度和总硬度。中试结果表明,催化剂高悬浮物废水经过电絮凝沉降方法,出水能够满足排放标准。总硬度可下降70%,悬浮物脱除率可达到98%以上,浊度去除率可达到99%以上。

广增素802对早熟温州蜜柑的控梢保果效应

广增素８０２对早熟温州蜜柑的控梢保果效应李洁荣，李绳坤，杨林林（广西师范大学生物系桂林５４１００４）早熟温州蜜柑春梢老熟朗与幼果稳果期相吻合，新梢与幼果之间争夺养分，导致幼果大量脱落。为缓解梢果矛盾，提高着果率，生产上普遍采用抹除部分或全部春梢进行保...

Using chloramine as a coagulant aid in enhancing coagulation of Yellow River water in China

Considering that contaminated raw water mostly contains high Ammonia-N and a majority of water treatment plants use prechlorination process in China, efficiency of chloramines as a coagulant aid in enhancing coagulation was investigated by Jar stirring and pilot-scale tests, using Yellow River water containing high concentration of natural organic matters （NOM） and bromide in winter. The jar tests results showed that, compared with no preoxidation, preformed chloramine apparently decreased the turbidity of settled and filtered water with low dosage （2.0 rag/L）, and the aid-coagulation efficiency was further enhanced with the increase of chlorine （Cl2） to Ammonia-N （N） ratio. Pilot-scale studies indicated that, in comparison to the case without preoxidation, the turbidity removal efficiency of flotation and filtration effluent water was significantly improved, the particle counts of filtered water were decreased 63.4%, the average rate of filter head loss was reduced 18.2%, and filter run time was prolonged 15.7%. Therefore, chloramine preoxidation may substantially enhance the particle separation efficiency.

Oxygen pressure acid leaching of Gacun complex Cu concentrates

The treatment of the Gacun complex Cu concentrate with high contents of Pb,Zn,Ag,etc by oxygen pressure acid leaching was studied.It is unusual that tetrahedrite,whose treatment was rarely studied,is the primary copper mineral of the concentrates.Most of silver also occurs in the mineral.The optimum operating parameters of oxygen pressure acid leaching were established by conditional tests.Pilot scale test was carried out under the parameters,and the leaching rates of copper and zinc are as high as 97.10% and 89.83% while lead and silver are transformed into sulfate and sulfide respectively and stay in leaching residue.The copper and zinc in lixivium were reclaimed by extraction-electrowinning and purification-electrowinning,respectively,and the lead and silver in the residue were reclaimed separately by chloride leaching and thiourea leaching.The extraction rate of copper achieves 96%,and the leaching rates of lead and silver reach 90% and 95%,respectively.

昆钢晓塘湖、日月湖水质改善研究与应用

昆钢晓塘湖、日月湖水质较差，影响昆钢市容市貌，文章介绍了对晓塘、日月湖水质进行全面系统分析、采用不同的水处理方法进行试验，取得不同的效果，同时进行实际应用，取得较好的效果，改善了水质、美化了昆钢环境。

Distribution of Extracellular Polymeric Substances in Pilot-Scale Membrane Bioreactor

The spatial distribution of extracellular polymeric substances （EPS） in a pilot-scale membrane bioreactor （MBR） was studied. The sampling points on top of and inside the membrane module were measured and analyzed by the experimental variant function. The content of EPS was spatially interpolated by ordinary Kriging method, and il- lustrated with SURFER software. A case study was carried out in an MBR with membrane aperture of 0.4 ~tm and handling capacity of 120 ma/d in Jizhuangzi sewage treatment plant, Tianjin. From the visualization of EPS distribu- tion, it is seen that on the horizontal plane, the content of EPS was the lowest at the center; and on the vertical plane, the content of EPS decreased with the increase of depth. The shearing force caused by aeration of perforated pipe and the influent mode are the main influencing factors for this distribution.

低碳排放的生物絮凝中试系统污染物去除特性及污泥EPS变化

用中试规模生物絮凝工艺处理含化学絮凝剂的生活污水,分别研究了HRT和进水SS对生物絮凝系统污染物去除特性、剩余污泥产量、污泥特性和温室气体排放的影响。结果表明:生物絮凝系统对COD、TN和TP有较好的去除效果,且污染物去除效果受进水SS影响较大;生物絮凝系统平均污泥产量和平均有机物产量最高可达53.63 kg·d^-1和21.14 kg·d^-1;污泥胞外聚合物EPS浓度和PN/PS均与有机负荷呈反比;化学絮凝剂通过影响PN/PS和EPS浓度,可间接影响污泥的沉降性能;生物絮凝系统与AAO工艺相结合,可降低50.12 g·m^-3温室气体的排放。因此,生物絮凝工艺可为污水处理厂节能降耗运行奠定基础,有望得到广泛应用。

曝气时长对中试曝气塘-浮萍塘联合系统中污染物去除的影响

浮萍塘污水处理技术具有管理简便、运行成本低、可资源化回收氮磷污染物等优势。然而,因水体溶解氧(DO)不足造成的污染物去除率低的问题限制了该技术的推广应用。为此,本研究在浮萍塘前端引入曝气塘,构建中试曝气塘-浮萍塘联合系统,借此增加浮萍塘DO含量,并进一步考察了曝气时长(0、0.5、1、2和4 h)对污染物去除效果及浮萍生长的影响,以此探寻低耗高效的最佳曝气时长。结果表明,曝气塘可有效降低水体的浊度,但对氮磷去除的贡献较小,氮磷的去除以浮萍塘为主。曝气处理可显著提高曝气塘及浮萍塘水体DO含量和氧化还原电位(Eh),且DO和Eh随曝气时长的增加而上升。此外,曝气处理还能显著促进浮萍生长及其污染物的去除,但促进效果并未简单地随曝气时长的增加而提高。其中,TN、氨氮和浊度的去除率在曝气时长1 h时已基本达到峰值(去除率分别为58.4^(2)%、61.89%和89.90%),TP去除率虽在曝气时长4 h时最大(81.44%),但与曝气时长0.5 h(73.05%)相比并无显著差异;浮萍虽在曝气时长^(2) h时干基生长速率最高(8.00 g·(m^(2)·d)^(-1)),但与曝气时长0.5 h和1 h(7.35 g·(m^(2)·d)^(-1)左右)相比也无显著差异,而曝气成本却成倍增加。因此,综合考虑污染物去除、浮萍生长及曝气成本,建议曝气时长不宜高于1 h,推荐0.5~1 h为佳。以上结果可为曝气塘-浮萍塘联合系统的应用及曝气时长的选择提供参考。