scholarly journals Study on the model of domestic sewage resource utilization

2021 ◽  
Vol 252 ◽  
pp. 03044
Author(s):  
Zhuangzhuang Qu ◽  
Yangjing Wang
Keyword(s):  
Resource Utilization ◽  
Rural Areas ◽  
Suspended Solids ◽  
Anaerobic Fermentation ◽  
Water Environment ◽  
Domestic Sewage ◽  
Sewage Discharge ◽  
Economic Level ◽  
Rural Water ◽  
Urban Rural

In recent years, with the degree of urban-rural integration, the economic level of rural areas and the improvement of residents’ health awareness, the water quality pollution of rural domestic sewage has increased year by year, and the problem of rural sewage discharge has become increasingly prominent. In order to improve the rural water environment and solve the problem of random discharge of sewage, this paper takes the rural domestic sewage as the research object, and takes the natural sedimentation and anaerobic fermentation as the main means to study the on-site resource utilization technology of sewage. It was found that after 3 hours of sewage sedimentation, organic suspended solids settled naturally, resulting in a significant decrease of COD in the upper sewage to 93.29 mg/L. Because of the special bimolecular structure of LAS, the concentration of LAS in surface sewage increased sharply to 7.68mg/L, but it was lower than 10mg/L, which met the irrigation water standard.

Współpraca gmin obwarzankowych na płaszczyźnie gospodarczej. Zarys problemu

2020 ◽  
Vol 18 (4) ◽  
pp. 247-259
Author(s):  
Lech Jańczuk
Keyword(s):  
Local Government ◽  
Rural Areas ◽  
Local Governments ◽  
Research Method ◽  
Rural Municipality ◽  
Research Hypothesis ◽  
Economic Level ◽  
Urban Rural ◽  
Rural Municipalities ◽  
Urban And Rural Areas

There are “urban-rural municipalities” in Polish administration nomenclature. They are territorial units where urban and rural areas have one name and one local government. There are also urban and rural municipalities that have one name but different local governments. That neighborhood of municipalities in Polish may be described as “municipalities bagel”. The aim of this article was to investigate whether and to what extent the “municipalities bagel” cooperate (coordinate) the exercising public tasks on the economic level. The article attempts to verify the research hypothesis: in “municipalities bagel” there is a lack of coordination of the exercising public tasks”. The research method was a diagnostic survey in which the questionnaire was conducted. In December 2019, questionnaire forms were sent to all “municipalities bagel” in Poland. The results of the research indicated a lack of coordination in the performance of public tasks between “municipalities bagel”. The result is a reduction of the efficiency of performance of public duties in such municipalities. The “municipalities bagel” are functionally related areas. This link is characterized by the subordination of the interests of the rural municipality (especially economic). The development of bagel rural communes is determined by the development and cooperation with their urban counterparts.

Current Situation and Main Pollution Sources of Rural Water Environment in China

2011 ◽  
Vol 281 ◽  
pp. 113-116 ◽  
Author(s):  
Zhen Hua Liu
Keyword(s):  
Rural Areas ◽  
Industrial Pollution ◽  
Water Environment ◽  
Average Concentration ◽  
National Average ◽  
Pollution Sources ◽  
Sources Of Pollution ◽  
Livestock Breeding ◽  
Rural Water ◽  
Average Figure

Pollution of surface water in rural areas in china remained serious, analysis the main pollution sources. Figure. 1 shows that the average concentration of COD from township enterprises was about two times the national average. Figure. 2 and figure. 3 shows that amount of fertilizers and pesticides use basically increases year by year and annually are enormous. Agricultural pollution is more serious than industrial pollution,untreated domestic sources of pollution and livestock breeding were harm to water environment in rural areas.

scholarly journals Research on water pollution prediction of township enterprises based on support vector regression machine

2021 ◽  
Vol 228 ◽  
pp. 02014
Author(s):  
Yue Wang ◽  
Song Xue ◽  
Junming Ding
Keyword(s):  
Water Pollution ◽  
Support Vector Regression ◽  
Rural Areas ◽  
Rural Economy ◽  
Negative Impact ◽  
Water Environment ◽  
Small Sample ◽  
Support Vector ◽  
Rural Water

The construction and development of township enterprises plays a key role in promoting the development of rural economy. With the implementation of the rural revitalization strategy, township enterprises develop rapidly, but there are problems in the development process that have a negative impact on the quality of local rural water environment. Rural water environment is related to the health of farmers, the healthy development of agriculture and the sustainable development of rural areas, so it is necessary to predict the water pollution of township enterprises. The application of support vector regression forecasting model to the prediction of water pollution of township enterprises can better predict the water pollution of township enterprises with the characteristics of complexity, nonlinear and small sample. This intelligent forecasting method will help to scientifically prevent the development of township enterprises from having negative impact on the quality of local water environment.

Research on Water Pollution and Control Technology in Rural Areas

2014 ◽  
Vol 997 ◽  
pp. 839-842
Author(s):  
Feng Li Zhang
Keyword(s):  
Water Pollution ◽  
Water Resource ◽  
Rural Areas ◽  
Water Environment ◽  
Control Technology ◽  
Rural Water ◽  
And Control

Rural waste, sewage large amounts of fertilizer pesticide as well as livestock pollution of water environment in rural areas. This article analyses the characteristics of rural water resource, pointing out the essence of rural water pollution ,which is a huge loss of excess fertilizer ,not to the rural water pollution, it is brought up the appropriate control technology .

scholarly journals Performance of a Novel Decentralised Sewage Treatment Reactor

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Dong Sheng Shen ◽  
Bao Cheng Huang ◽  
Hua Jun Feng ◽  
Bo Zhao ◽  
Jiang Ming Zhao ◽  
...  
Keyword(s):  
Rural Areas ◽  
Suspended Solids ◽  
Impact Load ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Domestic Sewage ◽  
Pollutant Removal ◽  
Surface Load ◽  
Dissolved Oxygen Concentration ◽  
Removal Efficiencies

A novel decentralised sewage treatment reactor (DSTR) for treating domestic sewage in rural areas was designed and investigated. The reactor was started aerobically after inoculation with biomass; the amount of initial mixed liquid suspended solids was 1.5 g/L. Oxygen was supplied to the reactor and the dissolved oxygen concentration was maintained at 1.3 ± 0.2 mg/L. The pollutant removal performance was investigated, and the average removal efficiencies of total chemical oxygen demand (TCOD),NH4+-N, suspended solids, and turbidity were 76%, 77.15%, 84.17%, and 83.93%, respectively. The DSTR exhibited good performance compared with the traditional activated sludge (AS) reactor. The resistance to impact load of the DSTR was superior to that of the AS reactor during surface load experiments. During the 120 days of operation, no sludge bulking was observed. The DSTR effluentNH4+-Nand TCOD levels were a little higher than those for the AS reactor, but the disparity was not major.

Socio-Economic Characteristics of Immigrants in Western Greece Region: Urban – Rural Continuum or Divide?

2006 ◽  
Vol 3 (2) ◽  
pp. 91-105 ◽  
Author(s):  
Theodoros Iosifides ◽  
Thanasis Kizos ◽  
Elektra Petracou ◽  
Ekaterini Malliotaki ◽  
Konstantina Katsimantou ◽  
...  
Keyword(s):  
Rural Areas ◽  
Urban Centers ◽  
Spatial Factors ◽  
Limited Role ◽  
Urban Rural ◽  
Of Greece ◽  
Western Greece

This paper aims at an investigation of factors of differentiation of basic social and economic characteristics of foreign immigrants in the Region of Western Greece. The paper explores whether the thesis of urban-rural divide is relevant for the differentiation of immigrants’ socio-economic characteristics in a typical Region of Greece, where there is a strong interplay between major urban centers and large rural areas. Findings show that spatial factors play a very limited role in the differentiation of socio-economic characteristics of immigrants and indicate that other factors are more important. Thus, and as regards socio-economic characteristics of immigrants, the overall picture is that of urban-rural continuum rather than divide. 

Establishing an empirical equation for the relationship between total suspended solids and total phosphorus concentrations in the downstream Red river water

2020 ◽  
Vol 20 (3) ◽  
pp. 325-332
Author(s):  
Le Nhu Da ◽  
Le Thi Phuong Quynh ◽  
Phung Thi Xuan Binh ◽  
Duong Thi Thuy ◽  
Trinh Hoai Thu ◽  
...  
Keyword(s):  
Total Phosphorus ◽  
Suspended Solids ◽  
Empirical Relationship ◽  
Water Environment ◽  
Total Suspended Solids ◽  
River System ◽  
Red River ◽  
Reservoir Impoundment ◽  
Downstream Section ◽  
Reasonable Prediction

Recently, the Asian rivers have faced the strong reduction of riverine total suspended solids (TSS) flux due to numerous dam/reservoir impoundment. The Red river system is a typical example of the Southeast Asian rivers that has been strongly impacted by reservoir impoundment in both China and Vietnam, especially in the recent period. It is known that the reduction in total suspended solids may lead to the decrease of some associated elements, including nutrients (N, P, Si) which may affect coastal ecosystems. In this paper, we establish the empirical relationship between total suspended solids and total phosphorus concentrations in water environment of the Red river in its downstream section from Hanoi city to the Ba Lat estuary based on the sampling campaigns conducted in the dry and wet seasons in 2017, 2018 and 2019. The results show a clear relationship with significant coefficient between total suspended solids and total phosphorus in the downstream Red river. It is expressed by a simple equation y = 0.0226x0.3867 where x and y stand for total suspended solids and total phosphorus concentrations (mg/l) respectively with the r2 value of 0.757. This equation enables a reasonable prediction of total phosphorus concentrations of the downstream Red river when the observed data of total suspended solids concentrations are available. Thus, this work opens up the way for further studies on the calculation of the total phosphorus over longer timescales using daily available total suspended solids values.

An Analysis of Consumption Pattern in Pakistan

1982 ◽  
Vol 21 (4) ◽  
pp. 275-296 ◽  
Author(s):  
Rehana Siddiqui
Keyword(s):  
Growth Rates ◽  
Rural Areas ◽  
Household Size ◽  
Consumption Pattern ◽  
Total Expenditure ◽  
Demand Growth ◽  
Food Items ◽  
Urban Rural ◽  
Urban And Rural Areas

The paper aims at testing the validity of Engel's law with data on Pakistan. Consumption functions for urban and rural areas have been estimated separately. These functions are shown to be determined by total expenditure and household size. Engel's law is confirmed for some commodity groups but not for all. Following tests of urban-rural homogeneity and of stability of urban and rural consumption functions, demand growth rates for different food and non-food items have been calculated, assuming different growth rates of total expenditure and household size.

A COMPARATIVE STUDY ON THE PERFORMANCE OF STUDENTS OF PRIVATE SCHOOLS, GOVERNMENT SCHOOLS SITUATED IN URBAN & RURAL AREAS OF HARYANA IN THE SECONDARY EXAMINATIONS CONDUCTED BY THE BOARD OF SCHOOL EDUCATION HARYANA IN 2020.

2020 ◽  
pp. 38-43
Author(s):  
Balkar Singh
Keyword(s):  
Private Schools ◽  
Rural Areas ◽  
School Education ◽  
Government Schools ◽  
Poor Students ◽  
Exam Preparation ◽  
Urban City ◽  
Urban Rural ◽  
The Government ◽  
Exam Result

The capability or calibre cannot be judged based on Results, as it depends on the student to student & also the examination is testing of knowledge of a student, for the whole year in two or three hours. In July 2020 the exam result of the secondary standard was declared by the Board of School Education Haryana, Bhiwani and there is a discussion about topper & the schools in which these toppers were studying & strategy of these toppers regarding exam preparation, their interviews & photos were published in the Newspapers, why not? It must be but in this spark light, there is some darkness behind this. Everyone is congratulating these students, as they are studied from the Private Schools of the Urban City areas of the Haryana, a few are from the most educated families, whose parents their selves are teachers or professors. Through this, we are ignoring a bitter truth of the poor students of the Government Schools, who despite lack of all the big & small facilities, as compare of these Private schools’ performed equal to these toppers. KEYWORDS: Testing of knowledge, Education in Private Schools, Toppers and Calibre.

Urban–Rural Dichotomy in Planning: Review of Legal Framework in Four States of India

2021 ◽  
pp. 001955612110016
Author(s):  
Anurima Mukherjee Basu ◽  
Rutool Sharma
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Planning Process ◽  
Legal Framework ◽  
Quantum Jump ◽  
Class 1 ◽  
Urban Settlements ◽  
Urban Rural ◽  
Territorial Approach ◽  
Sizeable Number

Current urbanisation trends in India show a quantum jump in number of ‘census towns’, which are not statutorily declared as urban areas, but have acquired all characteristics of urban settlements. Sizeable number of such census towns are not located near any Class 1 city. Lack of proper and timely planning has led to unplanned growth of these settlements. This article is based on a review of planning legislations, institutional framework and planning process of four states in India. The present article analyses the scope and limitations of the planning process adopted in the rapidly urbanising rural areas of these states. The findings reveal that states are still following a conventional approach to planning that treats ‘urban’ and ‘rural’ as separate categories and highlights the need for adopting an integrated territorial approach to planning of settlements.

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