Research on Sewage Treatment Technology of High Salt City in Tangshan Coastal Development Zone

2012 ◽  
Vol 599 ◽  
pp. 543-546
Author(s):  
Yang Yong ◽  
Xiao Liu ◽  
Yao Zong Zhang
Keyword(s):  
Economic Development ◽  
Sewage Treatment ◽  
Coastal Areas ◽  
Coastal Development ◽  
Biochemical Treatment ◽  
Treatment Technology ◽  
Development Zone ◽  
Technical Parameters ◽  
Urban Sewage ◽  
Technical Programs

With the economic development of the coastal development zone, the coastal industrial and economic development is rapid and the other residents' living consumption is lagging behind, resulting in a new coastal development zone COD / BOD low, coupled with the regional characteristics of the coastal areas, making the coastal areas of urban sewagetreatment plant of the difficult problems of biochemical treatment. This study focused on the reasons for the difficulties of urban sewage in coastal areas of biochemical treatment solution to the problem, and provide relevant technical programs and technical parameters for the construction of a new coastal development zone in the city sewage treatment.

scholarly journals Microplastics pollution in China water ecosystems: a review of the abundance, characteristics, fate, risk and removal

2020 ◽  
Vol 82 (8) ◽  
pp. 1495-1508
Author(s):  
Shuyuan Tang ◽  
Ling Gao ◽  
Hongze Gao ◽  
Zongshi Chen ◽  
Donglei Zou
Keyword(s):  
Economic Development ◽  
Large Population ◽  
Sewage Treatment ◽  
Current Treatment ◽  
Research Trends ◽  
Future Research ◽  
Treatment Technology ◽  
Sewage Treatment Plants ◽  
Research Results ◽  
Water Ecosystems

Abstract Microplastics pollution has been a focus for researchers in recent years worldwide, for the large quantities of plastics in production and the resistance to degradation. China's microplastics pollution attracts much attention because of its long coastline, large population and rapid economic development. This review addresses the widespread microplastics pollution in China's water ecosystems through available research results from recent years and analyses the abundance, characteristics, fate and risk of microplastics. This paper also discusses the current treatment technology of microplastics. The conclusions show that estuaries are severely affected by microplastics pollution; the accumulation of microplastics and adsorption of contaminants by microplastics could also lead to serious risks besides ingestion; there are few technologies that can efficiently remove microplastics pollution in sewage treatment plants. Finally, this review suggests directions for future research trends.

scholarly journals Purification of Urban Sewage River Using a Biological Aerated Filter with Sponge Iron and Ceramsite Mixed Fillers

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Yi Wu ◽  
Jun Dai ◽  
Qiong Wan ◽  
Guobin Tian ◽  
Dongyang Wei
Keyword(s):  
Removal Efficiency ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Sponge Iron ◽  
Polluted Water ◽  
Biological Aerated Filter ◽  
Treatment Technology ◽  
Phosphorus Adsorption ◽  
Urban Sewage ◽  
Aerated Filter

Filler plays an important role in biological sewage treatment technology. In the purification of urban sewage river, the single sponge iron filler is easy to harden. The combination of sponge iron and ceramsite can hinder the hardening and improve the removal efficiency. In this paper, scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the fillers. The removal efficiency experiments were carried out through the self-designed biological aerated filter (BAF) reactor with sponge iron and ceramsite mixed fillers, and the microorganisms attached to the surface of the biological fillers were qualitatively and quantitatively identified through 16S rDNA. The results indicate that the presence of Fe3O4, Fe2O3, Fe3C, and Fe2CO3 in sponge iron determines that sponge iron has strong reducibility and provides electrons for efficient denitrification. NaAlSi3O8 in ceramsite filler plays a significant role in phosphorus adsorption. In #3, #4, and #5 reactors (the mass ratios of sponge iron and ceramsite were 1 : 1, 3 : 1, and 1 : 3, resp.), the removal efficiencies of mixed fillers are good on chemical oxygen demand (COD), total phosphorus (TP), and nitrogen (N), and the more the ceramsite fillers in the reactors are, the higher the microbial abundance and diversity are. The mixture of sponge iron and ceramsite can be used to purify urban sewage river. A scientific basis to purify the polluted water body of urban rivers in situ is thus provided.

Urban Sewage Treatment Process and Selection Principles

2014 ◽  
Vol 641-642 ◽  
pp. 399-402
Author(s):  
Chun Mei Liu ◽  
Zheng Yang Wang
Keyword(s):  
Rapid Development ◽  
Sewage Treatment ◽  
Water Environment ◽  
Modern Society ◽  
Physical And Mental Health ◽  
Treatment Technology ◽  
Urban Sewage ◽  
Selection Principles ◽  
City Water ◽  
The City

With the rapid development of modern society and economy, environmental problems have become increasingly prominent, especially the city water environment worsening, exacerbating the shortage of water resources, affecting people's physical and mental health, which has become the serious restriction factor of sustainable development of the city. This paper mainly discuss from the introduction of city sewage treatment technology and methods.

scholarly journals The Circular Economy: A Study on the Use of Airbnb for Sustainable Coastal Development in the Vietnam Mekong Delta

2021 ◽  
Vol 13 (13) ◽  
pp. 7493
Author(s):  
Jianjia He ◽  
Thi Hoai Thuong Mai
Keyword(s):  
Sustainable Development ◽  
Economic Development ◽  
Circular Economy ◽  
Mekong Delta ◽  
Sharing Economy ◽  
Coastal Areas ◽  
Living Conditions ◽  
Coastal Development ◽  
Coastal Resources ◽  
Positive Economic

The concept of the circular economy has become well known for its solution-oriented approach to transforming available resources into a closed-loop resource system. However, in the context of coastal areas, coastal resources seem to be ignored in the tourism production and consumption process. In relation to the 2030 Agenda for Sustainable Development Goals (SDGs), this article discusses how sharing economy practices may sustain coastal resources through ecotourism, applying a sharing-economy theory that emphasizes changes in the new form—a circular economy—rather than a single traditional Airbnb model or ecotourism model. This study proposes a coastal sustainable development structure model based on the integration between the sharing economy and ecotourism with three modes—positive economic effects, positive economic pressures, and sustainable coastal development—and uses coastal residents’ expectations of their living conditions as moderating factors to investigate the impact of the circular economy on coastal sustainability. We developed a survey-based model that included 303 samples from the indigenous residents of 13 provinces throughout the Vietnam Mekong Delta. The results show that the integration of ecotourism with the Airbnb model has a positive effect on residents’ living conditions, supporting sustainable local development. However, the advancement of technology and residents’ awareness involves barriers to coastal development because the process of modernization is still limited in coastal areas. More specifically, in the case of the Vietnam Mekong Delta, our results suggest that limited technical knowledge and language ability stand as barriers to coastal businesses, showing that the lack of inter-regional connectivity limits the magnitude of local tourism in coastal areas. These findings are useful for assessing residents’ living conditions so that coastal development can work towards poverty reduction. Finally, the establishment and expansion of policies by local authorities can be an indispensable part of coastal economic development by limiting the negative effects of the abuse of natural resources and facilitating family businesses in coastal zones in an effort towards the integration of economic development and social and environmental responsibility.

Experimental Study on the Landscape Combined Sewage Treatment Technology

2013 ◽  
Vol 864-867 ◽  
pp. 2654-2658
Author(s):  
Li Song ◽  
Gui Fang Jiang ◽  
Zhi Gang Xie ◽  
Qing Li ◽  
Wu Quan Ding
Keyword(s):  
Low Cost ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Surface Water Quality ◽  
Quality Standard ◽  
Stable Operation ◽  
Treatment Technology ◽  
Wastewater Treatment Process ◽  
Urban Sewage

In this paper, artificial wetland systems, aeration tanks, rapid filter combined biological wastewater treatment process facilities for domestic sewage treatment. Test systems,TN treatment effect, are higher than the value of surface water quality standard GB3838-2002 in V class standards.Treatment effect to achieve the urban sewage treatment plant pollutant discharge standards GB18918-2002 a class of emission standards, the treatment system, low cost, easy management, stable operation.

scholarly journals PHÂN VÙNG CHỨC NĂNG CHO QUẢN LÝ TỔNG HỢP ĐỚI BỜ TỈNH THÁI BÌNH

2019 ◽  
Vol 18 (4) ◽  
pp. 378-383
Author(s):  
Nguyen Van Cu ◽  
Nguyen Van Muon ◽  
Nguyen Quoc Cuong ◽  
Bui Thi Thanh Huong ◽  
Tran Thi Ngoc Anh
Keyword(s):  
Economic Development ◽  
Coastal Management ◽  
Coastal Development ◽  
National Defense ◽  
Development Zone ◽  
Functional Zoning ◽  
Functional Zones ◽  
Ecological Conservation ◽  
Exploitation Status ◽  
Economic Development Zone

On the basis of analyzing natural conditions, resources, current exploitation status and functional zoning principles and criteria, functional zoning maps for integrated coastal management in Thai Binh were incorporated. Results suggested classifying Thai Binh coasts into two functional zones: Urban and multi-economic development zone and ecological conservation and recovery with economic development and national defense zone. Then, zone 1 and zone 2 were classified into 3 and 4 different functional sub-regions respectively with suitable proposal of prior activities and management. This research is an important basis for coastal development and intergrated coastal management in Thai Binh.

scholarly journals Effect of pH and Initial Concentration on Adsorption of Chitosan in Restaurant Sewage Treatment Technology

2021 ◽  
Vol 804 (4) ◽  
pp. 042085
Author(s):  
Yibo Wang ◽  
Hua Liu ◽  
Zhijian Mai ◽  
Peiqi Jiang ◽  
Canjie Yang ◽  
...  
Keyword(s):  
Sewage Treatment ◽  
Treatment Technology ◽  
Effect Of Ph ◽  
Initial Concentration
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