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Study on Situations and Sustainable Development Strategies of China’s Fishery Environment
Zhengguo Cui, Keming Qu, Tang Qisheng
Strategic Study of CAE 2018, Volume 20, Issue 5, Pages 63-68 doi: 10.15302/J-SSCAE-2018.05.010
A fishery environment is a place on which the survival and reproduction of aquatic lives rely and is the foundation of fishery development. In general, the deterioration of the environmental quality of fishery waters in China has not yet been fundamentally curbed, and dissolved inorganic nitrogen and active phosphate are still the major indicators of pollution in fishery waters. Based on analyses of the status and variation trend of the fishery environment, in this review, we clarify the main factors that affect the sustainable development of China's fishery environment, such as development of construction projects, pollution of external sources, ecological disasters, and pollution accidents; identify major environmental issues in key areas of water; propose the idea of sustainable fishery environment based on green, low-carbon, and environmentally friendly development; establish the overall development goal and the specific development goals of two stages by 2025 and 2030; and put forward suggestions and measures including strictly controlling external pollution and aquaculture self-pollution, delineating the ecological conservation redline, improving the monitoring technology system, strengthening ecological rehabilitation, and implementing innovation projects of the fishery environment in China, hoping to provide references for the protection and management of China's fishery environment.
Michael J. Nelson, George Nakhla, Jesse Zhu
Engineering 2017, Volume 3, Issue 3, Pages 330-342 doi: 10.1016/J.ENG.2017.03.021
Wastewater treatment is a process that is vital to protecting both the environment and human health. At present, the most cost-effective way of treating wastewater is with biological treatment processes such as the activated sludge process, despite their long operating times. However, population increases have created a demand for more efficient means of wastewater treatment. Fluidization has been demonstrated to increase the efficiency of many processes in chemical and biochemical engineering, but it has not been widely used in large-scale wastewater treatment. At the University of Western Ontario, the circulating fluidized-bed bioreactor (CFBBR) was developed for treating wastewater. In this process, carrier particles develop a biofilm composed of bacteria and other microbes. The excellent mixing and mass transfer characteristics inherent to fluidization make this process very effective at treating both municipal and industrial wastewater. Studies of lab- and pilot-scale systems showed that the CFBBR can remove over 90% of the influent organic matter and 80% of the nitrogen, and produces less than one-third as much biological sludge as the activated sludge process. Due to its high efficiency, the CFBBR can also be used to treat wastewaters with high organic solid concentrations, which are more difficult to treat with conventional methods because they require longer residence times; the CFBBR can also be used to reduce the system size and footprint. In addition, it is much better at handling and recovering from dynamic loadings (i.e., varying influent volume and concentrations) than current systems. Overall, the CFBBR has been shown to be a very effective means of treating wastewater, and to be capable of treating larger volumes of wastewater using a smaller reactor volume and a shorter residence time. In addition, its compact design holds potential for more geographically localized and isolated wastewater treatment systems.
Keywords： Wastewater Biological wastewater treatment Fluidized-bed technology Fluidized-bed reactor Biological nutrient removal Bio-particles High-efficiency process
Countermeasures for Assuring Water Ecological Environment Security in China
Huo Shouliang,Zhang Hanxiao,Jin Xiaowei ,Cao Xiaofeng,Wu Fengchang
Strategic Study of CAE 2022, Volume 24, Issue 5, Pages 1-7 doi: 10.15302/J-SSCAE-2022.05.001
A good water ecological environment is crucial for the sustainable development and ecological civilization of China. However, various problems remain for China’s water ecological environment, including eutrophication, pollution of drinking water sources, contamination of groundwater and coastal waters, emerging pollutants, and shortage of ecological water. In this study, we analyzed the overall situation of the water ecological environment in China, pinpointed the major challenges, and proposed the strategic thinking and several basic principles. These principles focus on improving the water ecological environment and comprehensively consider water quality improvement, water ecological protection, and water environmental risk prevention and control. Three major scientific and technological projects were proposed pertaining to (1) coordinated governance and overall restoration of mountains, rivers, forests, fields, lakes, grasses, and sand in key basins, (2) overall improvement of water environment and water ecology in the Beijing-Tianjin-Hebei Collaborative Development Area, and (3) assurance of drinking water safety in the new era. Furthermore, we proposed the following four countermeasures: (1) revising the Environmental Quality Standards for Surface Water to strengthen its leading role in the construction of water ecological civilization in China; (2) evaluating the spatial and temporal differences of nitrogen and phosphorus nutrients in China’s lakes and implementing differentiated nutrients standards; (3) assessing the current status of water ecology in China and promoting water ecology monitoring and assessment; and (4) establishing an intelligent supervision platform for drinking water safety based on big data fusion.
Keywords： water ecological environment ecological civilization quality improvement water ecological security drinking water safety
Strategic Study of CAE 2000, Volume 2, Issue 5, Pages 92-92
Lu Youmei
Strategic Study of CAE 2011, Volume 13, Issue 7, Pages 9-14
Seeking water and earning their livelihoods is the natural selection of human beings. Like other rivers on the earth, the Yangtze River is the birthplace of human civilization and survival. As an ecosystem, the Yangtze River Basin is evolving under the influences of natural factors and human activities. Because of soil erosion, pollution and human activities, the imbalance of secondary environment is exacerbated and the ecological environment has become more vulnerable. It is urgent to mitigate and prevent the ecological crisis. The practice has proved that implementation of engineering measures is an effective way to improve the ecological environment. The Three Gorges Project (TGP) has a flood control storage capacity of 22.15 billion m3, effectively storing the flood water upstream of Yichang, and protects 15 million people and 1.5 million hm2 farmland. Furthermore, the project can prevent or slow down the sedimentation and shrinkage of the lakes in the middle Yangtze River such as Dongting Lake; with an average annual power generation of about 90 billion kW·h, it can significantly reduce CO2 and harmful gas emission. In general, the construction of TGP is conducive to the ecological and environmental protection in the Yangtze River Basin and China, even the world.
Keywords： Yangtze River Basin natural ecology ecological environment environmental protection
Strategy for Carbon Sink and Its Amplification in Marine Fisheries
Tang Qisheng and Liu Hui
Strategic Study of CAE 2016, Volume 18, Issue 3, Pages 68-73 doi: 10.15302/J-SSCAE-2016.03.011
The concepts of the marine fisheries carbon sink and carbon sink fisheries current state of research, main problems, technological needs are introduced in this paper. Compared to forestry carbon sequestration, marine fisheries carbon sink is characterized by both high efficiency and scale-up potential. Therefore, the strategy and measures for scaling up marine fisheries carbon sink are proposed, including: investigating the potential and mechanisms for marine fisheries carbon sink; vigorously developing carbon sink fisheries of which the principal part is aquaculture; strengthening the conservation and management of natural carbon sink and environment of China's seas; implementing fisheries carbon sink amplification project construction, and promoting the development of environmentally friendly aquaculture industry.
Keywords： marine fisheries carbon sink carbon sink fisheries carbon sink amplification conservation and management bivalve and seaweed aquaculture
Deep Volatiles as the Key for Energy and Environments of the Four-Dimensional Earth System
Ho-Kwang Mao, Craig M. Schiffries
Engineering 2019, Volume 5, Issue 3, Pages 393-394 doi: 10.1016/j.eng.2019.05.003
Science and Technology in Human's Living and Survival in the 21st Century
Jiang Zhenghua
Strategic Study of CAE 2002, Volume 4, Issue 4, Pages 1-11
This article, from the angle of management, reviews the world history over the past century, studies the prospective progress in the new century, and discusses ways for promoting world peace and cooperation and realizing common development.
Keywords： 21st century progress in science and technology human's living and survival
Zoning of Agricultural Resource and Environment in China
Erqi Xu
Strategic Study of CAE 2018, Volume 20, Issue 5, Pages 57-62 doi: 10.15302/J-SSCAE-2018.05.009
Problems in China’s agricultural resources and environment have become increasingly prominent, with distinct resource and environment constraints for regional agricultures. Based on regional differentiation in agricultural resource and environment characteristics, this paper divided the country into 10 first-level zones and 57 second-level zones at the county scale. The first-level zones were divided according to regional differentiation in climate and geotectonic. And the second-level zones differentiate in water resources, land resources, and environmental conditions. It analyzed the agricultural production conditions, types of resources and their different combinations, environmental production conditions, and existing problems in these zones. This study proposed the strategies of “optimizing the spatial layout of eastern, central, and western regions” and “improving Northeast China, regulating North China, and recovering South China”. Twenty-seven second-level zones, undertaking the supply of major agricultural products in China, were identified and labeled as “major agricultural developing regions in China”. The development direction and construction measures of the major agricultural developing regions in China were suggested to maintain and improve the health and sustainability of China’s agricultural production system.
Keywords： 一级区依据气候条件和大地构造的地域分异，二级区根据水资源、土地资源和环境条件问题差异。分析了全国各分区农业生产条件、资源类型及其组合的特点、环境生产条件和存在问题，提出 中国农业资源环境问题日益突出，区域农业资源限制因素和环境制约问题各不相同。依据农业资源环境地域分异，以县域为制图单元，本文将全国划分为10 提高东北，整治华北，恢复南方 战略，并划分了27 个承担主要农产品供给保障功能的 ，指明其建设方向措施，以维护和改善我国农业生产系统的健康和可持续性
Wu Jisong
Strategic Study of CAE 2012, Volume 14, Issue 12, Pages 69-74
The new project management principle of implementing the total control in large, interdisciplinary, cross-industries and cross-regions systems to promote the transformation of the economic development way in the adjustment of industrial structure and the drive of science and technology innovation etc. was presented and discussed. Using three red lines of water resource exploitation, utilization and protection decided in the Central Water Conservancy Working Conference and the project planning which the author chaired or participated in Beijing and Shanghai as the case, the quantitative analysis on the total control of the water environment and resources engineering was made, which can be referenced by all types of the total project control.
Keywords： transformation of economic development way large-scale systems analysis innovation of project management principle total control water environmental engineering
Natural gas is an important stage and trend of energy low carbonization development
Hu Jianyi,Guo Bincheng
Strategic Study of CAE 2011, Volume 13, Issue 4, Pages 9-14
Along with the economic and technological development, fossil energy resources have developed from low efficiency to high efficiency, from high carbon to low carbon. Energy resources substitution will be a long process of transition from an era when fossil energy resources are the main part to another period when new energy resources develop rapidly. Natural gas, which is characteristic of immense resource including conventional and unconventional resources and high reserve-production ratio, has become the significant development moment of low carbon fossil energy resources, and will also become the first energy resource. The utilization of natural gas, which is rather low carbon among fossil energy resources, has given rise to great attention and discussion around the world and natural gas will become the bridge to realize energy resources low carbonization. Natural gas is also new energy resource in China, and has great potential for further development.
Keywords： natural gas low carbon fossil energy
To Exploiting Lower Tidal Flats for Expending Living Space of China
Chen Jiyu
Strategic Study of CAE 2000, Volume 2, Issue 3, Pages 27-31
It was predicted that the population of China will increase by 2〜3 hundred millions by the middle of next century, but the arable land will decrease by 18 million ha. This means that there will be a shortage of living space for 4〜5 hundred million populations, which will aggravate the situations of population, resources and environment. To expend living space is difficult duo to closing off afforested mountain for protection on upstream and recovering lakes from onec reclaimed farmland. However, the tidal flats along the coasts can provide a large amount of land resources. Historically, there were over 100 000 km2 obtained from land progression and reclamation. In recent 50 years, China has acquired 11 000～12 000 km2 new land with enhancing reclamation. This paper suggests making 10 000 — 15 000 km2 living space for 20～30 millions population to get employment before the year 2050. The reclaimation to lower tidal flats is the key and difficult point in the next 50 years. According to the sediment shortage from sea or river between artificial landmaking and natural landmaking, the artificial impelling siltation and bio-impelling siltation engineerings are necessary to make up for sediment shortage of natural land-making. Besides, it is also necessary to improve environmental monitor and prediction precision and to piake innovations on engineering technology and so on.
Keywords： tidal flats living space reclamation artificial coastline engineering impelling siltation bioimpelling siltation
Zhongyang Zhang, Yumeng Chen, Lasse Hyldgaard Klausen, Sebastian Amland Skaanvik, Dan Wang, Jianfeng Chen, Mingdong Dong
Engineering 2023, Volume 24, Issue 5, Pages 102-113 doi: 10.1016/j.eng.2022.09.016
Microalgae are a group of microscopic eukaryotic organisms that can transform carbon dioxide into diverse bioactive compounds through photosynthesis using chlorophyll a. Over the past decade, biohybrid materials comprising live microalgae and other biocompatible components have exhibited tremendous potential in solving many medical challenges, such as oncotherapy, tissue reconstruction, and drug delivery. Microalgae immobilized within conventional biomaterials can maintain their photosynthetic activity for an extended period of time, thereby providing local oxygen and working as biocompatible interfacing materials for regulating cell activities. The motility of microalgae has also inspired the development of biohybrid microrobots, in which drug molecules can be bound to the surface of microalgae via noncovalent adsorption and delivered to the target area through precisely controlled locomotion. Moreover, the autofluorescence, phototaxis, and biomass production of microalgae can be integrated into the design of novel biohybrid materials with versatile functions. Furthermore, through appropriate genetic manipulation, engineered microalgae can endow biohybrid materials with novel properties, such as specific cell-targeting capability and the local release of recombinant proteins from algae cells—technologies that show promise for promoting and diversifying the clinical use of microalgae-based biohybrid materials (MBBMs) in several fields of biomedicine. Herein, we summarize the fabrication, physiology, and locomotion ability of MBBMs; we then review typical and recent reports on the use of MBBMs in the biomedical field; finally, we provide critical discussions on the challenges and future perspectives of MBBMs.
Keywords： Biointerface Microalgae Biohybrid materials Microrobots
Strategy for Assuring Water Security in the Haihe River Basin by 2035
Zhu Tingting, Hou Li’an, Tong Yindong, Liu Yiwen, Li Ning, Zhao Yingxin, Chen Guanyi
Strategic Study of CAE 2022, Volume 24, Issue 5, Pages 26-33 doi: 10.15302/J-SSCAE-2022.05.004
Water security in the Haihe River Basin is an important component of China's ecological civilization and is vital for highquality national development of the country. Considering the development requirement for water security in the Haihe River Basin, we analyzed the problems regarding water security assurance from the perspectives of water resources, water environment, water ecology, and flood disasters. Subsequently, we predicted the development trend of water security in the Haihe River Basin by 2035 through data simulation. On this basis, an overall idea was proposed, that is, assuring water security in the Haihe River Basin by reinforcing measures for protecting water ecology, and highlighting the role of water resources carrying capacity. Focus should be placed on developing capacities regarding (1) systematic allocation and efficient utilization of water resources, (2) comprehensive improvement in water environment, (3) governance and restoration of basin ecology, and (4) prevention and emergency response of flood disasters. Furthermore, we proposed the following suggestions from a technological perspective: (1) implementing new strategies for the conservation and efficient utilization of water resources, (2) ensuring drinking water safety and improving water governance capacities, (3) establishing a water ecological pattern that features people-water harmony, and (4) developing a flood disaster prediction and response mechanism.
Keywords： Haihe River Basin water security water resource water environment water ecology flood disasters
Introducing Sea Water from Bohai Sea to West China for Its Sustainable Development
Chen Changli
Strategic Study of CAE 2003, Volume 5, Issue 1, Pages 48-55
Sustained and deepened aridization process in northwest China in Tertiary and Quaternary period and time of mankind history is discussed in the paper. The rain-creased function of 3 set high mountain condensation systems in northwest China is recognized once more. A sandstorm happened in March 20 this year in Alxa and Ejin(Qi) areas was very strong and arrived in Jappen and Korea. For saving Alxa area from sandstorm a way of introducing sea water from Bohai to Alxa had been proposed. Four problems are replied in this paper. In couclusion, introducing sea water from Bohai Sea to west China is the best way for sustainable development of west China.
Keywords： introducing sea water from Bohai sea to west China sustainable development source of sandstorm aridization.
Title Author Date Type Operation
Study on Situations and Sustainable Development Strategies of China’s Fishery Environment
Zhengguo Cui, Keming Qu, Tang Qisheng
Journal Article
Fluidized-Bed Bioreactor Applications for Biological Wastewater Treatment: A Review of Research and Developments
Michael J. Nelson, George Nakhla, Jesse Zhu
Journal Article
Countermeasures for Assuring Water Ecological Environment Security in China
Huo Shouliang,Zhang Hanxiao,Jin Xiaowei ,Cao Xiaofeng,Wu Fengchang
Journal Article
The Existence of Non Biological Oil and Natural Gas is an Inexhaustible Clean Energy for Human Beings
Journal Article
Three Gorges Project: a project for ecological improvement and environmental protection in Yangtze River Basin
Lu Youmei
Journal Article
Strategy for Carbon Sink and Its Amplification in Marine Fisheries
Tang Qisheng and Liu Hui
Journal Article
Deep Volatiles as the Key for Energy and Environments of the Four-Dimensional Earth System
Ho-Kwang Mao, Craig M. Schiffries
Journal Article
Science and Technology in Human's Living and Survival in the 21st Century
Jiang Zhenghua
Journal Article
Total control on the project management is the key to transformation of economic development way—taking water environment and resources engineering for example
Wu Jisong
Journal Article
Natural gas is an important stage and trend of energy low carbonization development
Hu Jianyi,Guo Bincheng
Journal Article
The Rational Design and Development of Microalgae-Based Biohybrid Materials for Biomedical Applications
Zhongyang Zhang, Yumeng Chen, Lasse Hyldgaard Klausen, Sebastian Amland Skaanvik, Dan Wang, Jianfeng Chen, Mingdong Dong
Journal Article
Strategy for Assuring Water Security in the Haihe River Basin by 2035
Zhu Tingting, Hou Li’an, Tong Yindong, Liu Yiwen, Li Ning, Zhao Yingxin, Chen Guanyi
Journal Article
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