Integrated waste water management for a small river basin - a case study

1998 ◽  
Vol 38 (11) ◽  
pp. 87-95
Author(s):  
R. Fenz ◽  
M. Zessner ◽  
N. Kreuzinger ◽  
H. Kroiss
Keyword(s):  
Waste Water ◽  
Water Management ◽  
River Basin ◽  
Rural Areas ◽  
Urban Areas ◽  
Waste Water Treatment ◽  
Point Of View ◽  
Political Issue ◽  
The North ◽  
Waste Water Management

In Austria approximately 70% of the population is connected to sewerage and to biological waste water treatment plants. Whereas the urban areas are already provided with these facilities to a very high extent, effort is still needed in rural areas to meet the requirements of the Austrian legislation. The way, this task should be solved has provoked much controversy. It is mainly the question, whether centralised or decentralised sewage disposal systems are preferable from the ecological and economical point of view, that became a political issue during the last 5 years. The Institute for Water Quality and Waste Management was asked to elaborate a waste water management concept for the Lainsitz River Basin, a mainly rural area in the north of Austria discharging to the Elbe river. Both ecological and economical aspects should be considered. This paper presents the methodology that was applied and the criteria which were decisive for the selection of the final solution.

scholarly journals Modelling Snowmelt Induced Waste Water Inflows

1998 ◽  
Vol 29 (4-5) ◽  
pp. 285-302 ◽  
Author(s):  
Annette Semádeni-Davies
Keyword(s):  
Waste Water ◽  
Rural Areas ◽  
Urban Areas ◽  
Overland Flow ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Runoff Generation ◽  
Rural And Urban Areas

Impacts of urbanisation on hydrological processes are different for snowmelt and rainfall events. Furthermore, snowmelt and runoff generation differ between rural and urban areas. Within an urban area, melt intensities are increased at some sites; hence, the volume of water early in thaw can be greater than in rural areas. However, shading can reduce melt in other areas so that the melt period is extended. Many surfaces are at least seasonally impervious and generate overland flow - there is an apparent increase in the area contributing to quickflow as normally permeable surfaces become saturated or frozen or both. Water infiltrating permeable soil causes saturation and groundwater recharge so that water can seep into sewers. Regardless of whether water enters via inlets or sewer infiltration, drainage networks ensure swift delivery of melt water to outlets. Snowmelt induced runoff reaching the Uddebo Waste Water Treatment Plant in Luleå, Sweden, is investigated and a model of urban snowmelt and meltwater routing is proposed. The role of surface type (permeable and impervious) and snow cover characteristics (snow-free, undisturbed, compacted and piled) upon model output is studied. Results are encouraging and provide a good platform for further research.

Perencanaan Sistem Penyaluran Air Limbah Kawasan Aerocity X Wilayah A

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Kamila Khalishah ◽  
Didin Agustian Permadi ◽  
Etih Hartati
Keyword(s):  
Waste Water ◽  
Water Management ◽  
Water Treatment ◽  
Urban Area ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Waste Water Treatment Plant ◽  
Sewerage System ◽  
Waste Water Management

Aerocity X is an extended urban area provided to an international airport that consist of integrated  business and industrial areas. The total area is 3.480 Ha and it is expected to start construction phase in 2020. This research aims to take consideration of the existing condistions and technical criteria to design a sewerage system at Aerocity X area-zone A which has a total area of 1.801 Ha. The main aim is to provide centralized waste water management facility (including sewerage system) to handle wastewater problems caused by the increase population from the development of this area. The purpose of this research is to calculate dimension of the wastewaster pipeline. There are 43 service blocks and the estimated discharge of wastewater in 2045 in the area is 4,62 m<sup>3</sup>/s. The results of the calculation of main sewerage diameter is 200-2.350 mm using concrete pipa. The wastewater is conveyed to a Waste Water Treatment Plant (WWTP) located in the area using combination of gravitation and pump

scholarly journals Peptide-based ambidextrous bifunctional gelator: applications in oil spill recovery and removal of toxic organic dyes for waste water management

2017 ◽  
Vol 7 (6) ◽  
pp. 20160128 ◽  
Author(s):  
Kingshuk Basu ◽  
Nibedita Nandi ◽  
Biplab Mondal ◽  
Ashkan Dehsorkhi ◽  
Ian W. Hamley ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Management ◽  
Oil Spill ◽  
Organic Dyes ◽  
Waste Water Treatment ◽  
Soft Materials ◽  
Dual Function ◽  
Water Mixture ◽  
X Ray ◽  
Waste Water Management

A low molecular weight peptide-based ambidextrous gelator molecule has been discovered for efficient control of water pollution. The gelator molecules can gel various organic solvents with diverse polarity, e.g. n -hexane, n -octane, petroleum ether, petrol, diesel, aromatic solvents like chlorobenzene, toluene, benzene, o -xylene and even aqueous phosphate buffer of pH 7.5. These gels have been thoroughly characterized using various techniques including field emission scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray powder diffraction analysis, small angle X-ray scattering and rheological experiments. Interestingly, hydrogel obtained from the gelator molecule has been found to absorb toxic organic dyes (both cationic and anionic dyes) from dye-contaminated water. The gelator molecule can be reused for several cycles, indicating its possible future use in waste water management. Moreover, this gelator can selectively gel petrol, diesel, pump oil from an oil–water mixture in the presence of a carrier solvent, ethyl acetate, suggesting its efficient application for oil spill recovery. These results indicate that the peptide-based ambidextrous gelator produces soft materials (gels) with dual function: (i) removal of toxic organic dyes in waste water treatment and (ii) oil spill recovery.

scholarly journals CARTAGO CASE STUDY: WASTE WATER MANAGEMENT IN RURAL AREAS OF COSTA RICA

2019 ◽  
Vol 22 ◽  
Author(s):  
SILVIA M. SOTO-CÓRDOBA ◽  
LILLIANA GAVIRIA-MONTOYA ◽  
MACARIO PINO-GOMEZ
Keyword(s):  
Waste Water ◽  
Water Management ◽  
Surface Water ◽  
Rural Areas ◽  
Septic Tank ◽  
Microbiological Analysis ◽  
Research Information ◽  
Physical Chemical ◽  
Waste Water Management

Abstract This article provides information on the management of the grey and toilet water collected in rural areas of the province of Cartago, from the years 2014 to 2016. For this research, information was gathered from a survey applied to 614 households located in rural areas. Information was also obtained through field visits and a physical-chemical and microbiological analysis of surface and residual waters. It was found that 100% of greywater from houses in rural areas are thrown into their surrounding rivers and 87% of wastewaters are treated in septic tank systems. Pollution is observed in the surface water sources due to the increase of population density in rural areas and discharge without greywater treatment.

The Advantages of a Compact Filter for Individual or Semi-Collective Waste Water Treatment

1993 ◽  
Vol 27 (1) ◽  
pp. 41-50 ◽  
Author(s):  
A. Fazio ◽  
G. Warot ◽  
P. Vander Borght
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Rural Areas ◽  
High Performance ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Point Of View ◽  
Effluent Treatment ◽  
Septic Tank ◽  
Surface Distribution

In certain rural areas, collective water treatment is not an economically viable solution due to the cost of the water collection facilities (difficult terrain, distance between the houses); for various reasons, however, the traditional individual water treatment system is not highly regarded (bad installation, insufficient maintenance, …) and thus, work has been carried out to develop a high-performance and compact alternative solution for domestic waste water treatment. This alternative system makes use of a compact sand filter installed downstream from the septic tank, the filter's performance is based on supply regulation and improvement of the waste's surface distribution. Hydraulic laboratory studies and follow-up on a testing stand using real effluent have enabled us to develop a standardized compact system which is suitable for use in most terrains. The filter's purification performance is outstanding; at a daily supply rate of 150 l/m2, the average purification yields are over 90 % for COD, BOD, NH4, NKT From the bacteriological point of view, bacterial contamination is also significantly reduced. Laboratory tests are being carried out at present, with the aim of further improving purification by inducing a denitrification process enabling reduction of nitrate levels. This system's compact overall dimensions and relatively low cost mean that it can be used not only for individual waste water treatment but also for effluent treatment for small communities (≤ 400 inhabitant equivalent).

Sewage Treatment in Helophyte Beds–First Experiences with a New Treatment Procedure

1987 ◽  
Vol 19 (10) ◽  
pp. 1-10 ◽  
Author(s):  
K. Bucksteeg
Keyword(s):  
Waste Water ◽  
Rural Areas ◽  
Root Zone ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Uptake Capacity ◽  
Humid Climate ◽  
Climate Conditions ◽  
Trickling Filters ◽  
Operation Conditions

Waste water treatment in helophyte beds under humid climate conditions has been favoured by some German ecologists for some years. The idea is to cause waste water to flow horizontally through the root zone of helophytes to achieve satisfactory effluent properties. There exist many highly different proposals regarding the choice of soil and helophytes to be applied, bed area, design of inlets and outlets and operation conditions. A few plants have been operated in practice for some years. It appears that clogging is one of the main problems occurring in these plants. The hydraulic uptake capacity of soil is discussed in Darcy's law. Comparisons with observations of plants in operation are drawn. The interactions between soil properties, its uptake capacity, BOD5-, COD-, N- and P-reduction are evaluated. The effluent results of helophyte beds are compared with those of low-loaded trickling filters and of ponds used for sewage treatment in small villages in rural areas of Germany. It has been proved that the total construction costs of sewage treatment plants with helophyte beds used as the biological stage are higher when compared with those of conventional plants in general.

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