scholarly journals Ecological/economical and Organizational/legal Problems of Transition to the System of Water Quality Regulation on the Basis of the Best Available Techniques

2014 ◽  
pp. 120-130
Author(s):  
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Waste Waters ◽  
Urban Waste ◽  
Best Available Techniques ◽  
Treatment Techniques ◽  
Quality Regulation ◽  
Legal Problems

Analysis of possibilities of the existing urban waste water treatment techniques has been presented. It is mentioned that the problem of the beat available techniques choice is inseparably linked with correction of the current normalizing system in terms of composition of not only treated waste waters but also in terms of requirements to enterprises that dispose water into a sewage network.

scholarly journals Biological Treatment of Car Wash Waste Waters

2017 ◽  
Author(s):  
Essi Malinen ◽  
Nico Id ◽  
Sanni Valtonen ◽  
Janne Hakala ◽  
Tiina Mononen ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Water Treatment ◽  
Biological Treatment ◽  
Treatment Process ◽  
Waste Water Treatment ◽  
Oxygen Demand ◽  
Water Tank ◽  
Waste Waters ◽  
Car Wash

The purpose of this study was to examine how efficient a biological treatment process is in purifying car wash waste waters. Two Finnish automatic car washes having rotating bed biofilm reactors for waste water treatment were included in the study. Both of them are using 87 % of recycled water per car wash and only from 35 to 60 liters of fresh water. Samples were taken from the purified water tank every second week altogether seven times between the beginning of February and the end of May, 2012. The reduction of surfactants was at least 95 % and reduction of chemical oxygen demand (COD) between 87 and 95 % during the sampling period. Outdoor temperature seems not to have any significant effect on purification efficiency. Other water quality parameters such as conductivity, pH, oxygen concentration, total solids, and biological oxygen demand (BOD) were found to be on acceptable level based in comparison to values found in the literature. The high concentration of total nitrogen and total phosphorus in the purified water was caused by nutrients added to the bioreactor for optimal conditions for the microbes. In the studied car washes, the waste water treatment process managed to reduce input load considerably. The main challenges for the quality of purified water seems to be optimal nutrient input as well as on-line monitoring system for water quality.

The new technology of waste water treatment by using bioreactors with bio membranous movable bed – biochips

2020 ◽  
Vol 10 (3) ◽  
pp. 276-292
Author(s):  
Maria Y. Savostyanova ◽  
◽  
Lidia А. Norina ◽  
Arina V. Nikolaeva ◽  
◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Water Resources ◽  
Waste Water Treatment ◽  
Combined Treatment ◽  
Research Work ◽  
Pollution Level ◽  
Waste Waters ◽  
Treatment Facilities ◽  
Movable Bed

Retaining of water resources quality is one of the global ecological problems of the modern time. The most promising direction in solving the problem of water resources protection is the reduction of negative environmental influence of waste water from production facilities by upgrading the existing water treatment technologies. To treat utility water, technical and rain water from site facilities of Transneft system entities, the specialists developed and approved standard technological diagrams, which are used in producing treatment facilities. The standard technological diagrams provide for all necessary stages of waste water treatment ensures the reduction of pollution level to normal values. However, during operation of treatment facilities it was established, that to ensure the required quality of waste water treatment with initially high levels of pollution, the new technological solutions are necessary. The author presents the results of scientific-research work, in the context of which the best affordable technologies were identified in the area of the treatment of waste water with increased content of pollutants and non-uniform ingress pattern. On the basis of the research results the technical solutions were developed for optimization of operation of existing waste water treatment facilities by means of using combined treatment of technical and rain waters and utility waste waters and applying bioreactor with movable bed – biochips. The use of bioreactor with movable bed allows the increase in the area of active surface, which facilitates increase and retention of biomass. Biochips are completely immersed into waste waters, and biofilm is formed on the entire volume of immersion area, facilitating retention of biomass and preventing formation of sediments. Due to mixing the floating device with biofilm constantly moves along the whole area of bioreactor, and, in doing so, speeds up biochemical processes and uniformity of treatment. The advantages of a bioreactor with movable bed – its active sludge durability against increased and changing pollutant concentrations, change of waste water temperature and simplicity of application – ensured the possibility of its use for blending utility waters, technical and rain waters.

Composting of Sewage Sludge of Moscow Waste Water Treatment Plants Using Recycling Filler

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
D.A. Danilovich ◽  
M.N. Kozlov ◽  
V.I. Sklyar ◽  
Yu.A. Nikolaev ◽  
N.M. Shchegolkova ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Maximum Temperature ◽  
Waste Waters ◽  
Organic Additives ◽  
Organoleptic Properties ◽  
Water Treatment Plants ◽  
Waste Water Treatment Plants ◽  
The City

This work demonstrates a possibility of composting of municipal waste waters sludge (WWS) digested during 5-7 days, of the Kuryanovo waste water treatment plants (the city of Moscow) without the use of traditional organic additives – sawdust, peat, thatch. As a recycling filler (repeatedly used), enhancing the porosity of the composted mixture, ribbed polyethylene spheres (∅=8 cm) and wood chips (having dimension of 5-10 cm) were used. Composting was performed efficiently in both cases, however, the use of wood ships had technological and economical advantages. The process of composting was carried out during 2-4 weeks and was composed of classical phases of active heating (a rate of 0.2-0.3oC/h was obtained), maintaining of maximum temperature during 1-2 days, and cooling down to the ambient temperature. During the course of composting, a product was obtained, having attractive organoleptic properties, suitable for application in municipal laying-out of greenery.

scholarly journals Waste Water Treatment Costs in Poultry Rendering Plants in Georgia

1974 ◽  
Vol 6 (2) ◽  
pp. 65-71 ◽  
Author(s):  
Harold B. Jones ◽  
Waldon R. Kerns
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Treatment Costs ◽  
Agricultural Income ◽  
Poultry Products ◽  
Secondary Stage ◽  
Poultry Processing

Poultry products are an important source of agricultural income in Georgia and other southeastern states. Yet, the waste from poultry operations can lower water quality unless ways are found to reduce quantities discharged into streams and waterways. Present regulations require that all sewage discharged from processing and rendering plants have the equivalent of secondary stage treatment as defined by conventional biological standards [4]. More stringent regulations that would completely eliminate discharge of pollutants into waterways have been proposed [10]. Poultry processing and rendering plants must therefore adopt more advanced in-plant processes or private treatment systems or utilize public systems to achieve higher levels of waste water treatment in future years.

scholarly journals Types of water bodies receiving wastewater discharge (2011-2012)

2017 ◽  
Author(s):  
Chloé Meyer
Keyword(s):  
Waste Water ◽  
European Union ◽  
Water Treatment ◽  
Adverse Effects ◽  
Union Member ◽  
Waste Water Treatment ◽  
Wastewater Discharge ◽  
Urban Waste ◽  
Industrial Sectors ◽  
European Union Member States

This layer presents wastewater discharge points and the type of water body in which used water is discharged. Those data were collected from the reporting of European Union Member States, as part of the Urban Waste Water Treatment Directive (UWWTD) implementation. The Directive concerns the collection, treatment and discharge of urban waste water and the treatment and discharge of waste water from certain industrial sectors. Its objective is to protect the environment from the adverse effects of the above mentioned waste water discharges. For more information, visit the UWWTD waterbase website: www.eea.europa.eu/data-and-maps/data/waterbase-uwwtd-urban-waste-water-treatment-directive-4#tab-european-data Basin Pollution Quality Waste

scholarly journals Galvanic Production Waste Water Treatment with Electro/coagulation Sludge in Terms of Nickel and Copper Ions

2013 ◽  
Author(s):  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Copper Ions ◽  
Waste Water Treatment ◽  
Waste Waters ◽  
Chemical Cleaning ◽  
Nickel Ions ◽  
Galvanic Production ◽  
Soluble Aluminum ◽  
Electro Coagulation

A possibility of nickel ions and copper ions recovery from galvanic waste waters with electro-coagulation sludge that is formed in the process of electro/chemical cleaning of galvanic drainage pipes with the use of soluble aluminum anodes has been demonstrated. Nickel ions recovery from the galvanic waste water in case of the optimal proportion of the sludge has reached at least 55 %.

scholarly journals APLIKASI MEMBRANE BIOREACTOR (MBR) UNTUK PROSES DAUR ULANG AIR LIMBAH

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Taty Hernaningsih
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Membrane Bioreactor ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Quality Standards ◽  
Waste Water Treatment Plant ◽  
Recycled Waste

The population is growing rapidly result to increased demand for drinking water while the other side of this situation causes to the increasing amount of wastewater. Waste water treatment plant has been built in several major cities in Indonesia to overcome the problem of pollution.  Wastewater treatment plant only treats wastewater to tackle environmental pollution without being able to overcome the shortage of clean water community. Therefore, to solve the existing problems will be considered any further processing with recycled waste water treatment. One technology that may be developed for this purpose is the system of Membrane Bioreactor (MBR). This has been widely applied as an advanced unit of wastewater treatment and serves as a unit of processing recycled waste water. The MBR system has advantages such as: it only takes a little bit of land, can treat wastewater with discharge varying quality and process wastewater with high pollutant removal efficiency. MBR were investigated using a membrane filter submerged in the reactor. Membrane module is hollow fiber with a form of polymeric membrane materials. Research has been done on wastewater treatment with a combination of conventional WWTP as preliminary and advanced processing unit with MBR since March 4, 2014 until June 2014. The effluent quality  of result research proved that  the treated water quality meets  water quality standards are set with  Permenkes RI N0.416/Menkes/Per/IX/1990, dated 3 September 1990. The nitrification and denitrification also proceed well so that the concentration of nitrite and nitrate meet the quality standards. In addition, the percentage removal of heavy metals (arsenic, cadmium, chromium, selenium, lead) can reach 99%. Keywords: MBR, wastewater reuse, BOD5, COD, HRT dan SRT

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