环境保护

Wastewater containing titanium pigment was treated by microfiltration membrane, Nanometer titanium can be purified and concentrated by use of microfiltration. Operational conditions were optimized and the model was built. Finally, the amount of wash water was reduced. Based on the above research, the whole set equipment was designed, which can meet the needs in a titanium industry with a capability of 500 ton per year. Backflush and automatic control were used in the equipment, which has been steadily run two years, has been widely adopted in titanium industry. The technology has been widely adopted in titanium industry.In the recent years, whole set equipment of ceramic membrane was increasingly used in the recovery of desired production from fermentation broth in China. A new membrane process integrated with pretreatment of flocculation or coagulation was exploited to recover Inosine. ZrO2 ceramic membrane was used in the work, and the average permeation flux could reach 150L/m2.h under pH value of 3, transmembrane pressure 0.1MPa, CFV 3m/s, and temperature higher than 70C. The recovery ratio of inosine is higher than traditional recovery method, although inosine degraded under acidic and high temperature condition.

实验表明，ZrO_2膜处理肌苷发酵液的合适条件为pH=3、操作压力为0.1MPa、膜面流速3m／s、温度大于70度，此时可以获得平均渗透通量150L／m~2h，但由于酸性条件、高温下肌苷降解，导致肌苷收率有所降低，但仍高于传统肌苷提取方法得到的收率；为进一步提高肌苷得率，缩短提取工序，实验研究了絮凝剂预处理发酵液，解决碱性条件下由于蛋白析出导致膜污染加重的问题，研究表明采用CaCl_2絮凝并调节pH=11，可以获得平均渗透通量为180L／m~2h，肌苷得率大于95％；比较了三种肌苷提取工艺得到的产品质量，采用预处理与陶瓷南京工业大学博士学位论文膜分离结合的除杂工艺得到的粗昔质量与陶瓷膜分离、离子交换及活性炭吸附工艺生产的粗普质量相当，均优于传统的提取工艺；设计了每小时处理12一巧吨肌普发酵液的陶瓷膜成套装置，采用部分内循环的方式降低设备的能耗，简化了肌昔提取方式，提高了产品的收率和得率，由于减少离子交换和活性炭吸附，使得工厂废水排放量降低30一40%，降低酸、碱用量，有利于环境保护。

First, to many developing countries, poverty and backwardness are the root cause of environmental degradation.

有关环境保护的国际合作必须充分考虑到发展中国家的特殊情况和需要。

Finally, the study primary indicate three ecological zone ,named urban core zone, urbanize zone, banlieue, and defined itself ecological relationship. Simultaneity, this syudy indicate cardinal urban space development problems about population, land, economic activities by the spatial structure analysis. And it directs this problems to offer countermeasure.

进而利用台中市相关数据初步地辨识出都市中心、都市化地区及市郊区等三个都市生态空间区域，指出其生态关系，并透过空间结构分析明确台中都市发展在人口、土地和经济活等三方面的主要问题，从环境保护的角度，对台中都市生态系统空间结构的问题提出改善建议，供台中都市空间规划参考。

Population growth should be compatible with socio-economic development and be concert with resource utilization and environmental protection.

人口的增长应该与社会经济的发展相一致，与资源利用和环境保护相协调。

But it can be harnessed and made compatible with environmental protection.

但是发展可以与环境保护相协调，和谐发展。

The special activities that directly bear on the state security, public security, macro-economic control, ecological environment protection, and those directly relate to the human health, safety of life and property, which shall be approved according to the legal requirements

直接涉及国家安全、公共安全、经济宏观调控、生态环境保护以及直接关系人身健康、生命财产安全等特定活动，需要按照法定条件予以批准的事项

Protection and beautification of the environment is not the work and responsibility of a few.

环境保护工作和美化，不是少数人的工作和责任。

More and more people have become aware of the importance of environment protection.

越来越多的人意识到环境保护的重要性。

Desertification is one of most serious environmental and social-economic problem in the world, which has been suffering China for a long bine.

土地荒漠化已成为受其影响地区经济发展和环境保护的一个重要障碍，及时了解其过程、现状和发展趋势，对确定荒漠化防治的战略和措施均有重要意义。

It is so usefulthat we have to develop the biochip technology in our society.

在药学领域，生物技术改良农牧种群的性能、环境保护、军事医学等领域有着广泛的应用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。