INFLUENCE OF ADDING THE BACILLUS KIND STAMM ON WORKING PARAMETERS OF WASTE WATER BUOLOGICAL TREATMENT

2011 ◽  
Vol 1 (4) ◽  
pp. 46-51
Author(s):  
A. V ANTsIFEROV ◽  
V. M FILENKOV

Research results of granular sludge application for waste water quality improvement and reducing charges for polluting discharges of hazardous substances into surface waters are given. There is considered the technology of waste water treatment based on the use of biochemical methods of processing. Methodology is given for biomass use with the selection of microorganisms for waste water treatment herewith the effectiveness of treatment plants (type 201) work is over the design standards.

2020 ◽  
Vol 12 (4) ◽  
pp. 1641
Author(s):  
Geerten van de Kaa ◽  
Lieke van den Eijnden ◽  
Neelke Doorn

Standardization can be achieved in multiple ways; firms may join forces and develop standards in standardization committees, they may compete directly on the market in standards battles, or governmental agencies may impose standards. This paper studies criteria for the selection of standards in a situation in which these three forms of standardization occur simultaneously (multi-mode standardization). The paper attempts to arrive at weights for these criteria by applying them to the case of phosphorus recovery from municipal waste water, a technological process that fits the transition to a circular economy but that is still lacking standardization. A contribution is made to the standardization literature by empirically studying the case of multi-mode standardization and by applying standard success criteria to the area of water treatment.


2011 ◽  
Vol 6 (3) ◽  
Author(s):  
H. F. van der Roest ◽  
L. M. M. de Bruin ◽  
G. Gademan ◽  
F. Coelho

In the period 2003 to date, in the Netherlands an extensive research has been conducted for the development of a new breakthrough waste water technology. This Nereda® technology is based upon aerobic granular sludge and distinguishes itself from traditional activated sludge systems by a significant lower energy and chemical consumption, much less space requirements and lower costs. The STOWA, University of Delft, DHV and six Dutch water boards participate in a Dutch Nereda® development program. At five WWTPs in the Netherlands pilot research focused on granulation and nutrient removal and was supported by fundamental research. The achievements resulted in demonstration plants in South Africa and Portugal. The first full scale applications will be realized in the Netherlands. Currently world's first full scale plant at Epe, The Netherlands is under construction and will be started up in 2011. This article summarizes the results of the pilot scale investigations, executed in The Netherlands at five different municipal waste water treatment plants.


Chemosphere ◽  
2002 ◽  
Vol 48 (3) ◽  
pp. 307-315 ◽  
Author(s):  
Andreas C. Gerecke ◽  
Michael Schärer ◽  
Heinz P. Singer ◽  
Stephan R. Müller ◽  
René P. Schwarzenbach ◽  
...  

1986 ◽  
Vol 81 (9) ◽  
pp. 621-625
Author(s):  
Shunichi SATO ◽  
Tatsuo MAETANI ◽  
Nami YAMAMOTO ◽  
Tetsuo HASUO ◽  
Kazuo SAITO ◽  
...  

2018 ◽  
Vol 640-641 ◽  
pp. 1489-1499 ◽  
Author(s):  
Annemarie P. van Wezel ◽  
Floris van den Hurk ◽  
Rosa M.A. Sjerps ◽  
Erwin M. Meijers ◽  
Erwin W.M. Roex ◽  
...  

1985 ◽  
Vol 17 (6-7) ◽  
pp. 843-853 ◽  
Author(s):  
A. B. van Luin ◽  
W. van Starkenburg

The Governmental Institute for Sewage and Waste Water Treatment has studied the presence of a number of hazardous substances, selected by the EEC-Commission, in sewage and industrial waste water. The influent, effluent and sludge of six municipal waste water treatment plants and the waste water of 59 industries were sampled and analysed. Volatile chlorinated hydrocarbons in sewage originate mainly from industrial discharges. Chlorophenols, γ-hexachlorocyclohexane, polychlorinated biphenyls (PCB) and polycyclic aromatic hydrocarbons (PAH) appear to be present at a low and constant background in municipal sewage and in many industrial waste waters. The removal in the municipal treatment plants amounts to:-volatile chlorinated hydrocarbons 50–90%-hexachlorobenzene 95%-hexachlorocyclohexanes 40–65%-chlorophenols 20–40%-PCB about 90%-PAH 85–95% This study has given a survey of emissions of these hazardous substances. The total emission of the examined substances in the Netherlands has remained out of the scope of this investigation.


1987 ◽  
Vol 82 (7) ◽  
pp. 515-519 ◽  
Author(s):  
Shunichi SATO ◽  
Masahiko OTANI ◽  
Hitoshi SHIMOI ◽  
Kazuo SAITO ◽  
Makoto TADENUMA

2013 ◽  
Vol 5 (4) ◽  
pp. 342-348
Author(s):  
Simona Butkutė ◽  
Aušra Zigmontienė

The article discusses the influence and main causes of nutrient compounds in surface waters. The article is aimed at investigating changes in nutrients – nitrogen and its compounds in the river Šventoji. The samples of analysis were collected in the town of Anykščiai in order to assess the influence of the stream of the Anykšta and waste water treatment. The largest concentrations of nutrients were identified from waste water treatment; however, it had not exceeded the MAC, except for February 2012. The conducted analysis has shown that the river Šventoji belongs to the class of a high ecological status, because physic – chemical quality elements such as nitrate – nitrogen (0,60 mg/l) and ammonium – nitrogen (0,03 mg/l) have not exceeded the range <1,30 mg/l and 0,10 mg/l. Article in Lihuanian. Santrauka Straipsnyje nagrinėjama biogeninių medžiagų įtaka paviršiniams vandens telkiniams ir pagrindinės šių medžiagų atsiradimo priežastys. Tyrimo tikslas – azoto turinčių biogeninių medžiagų – nitritų, nitratų, amonio koncentracijų Šventosios vandenyje analizė. Mėginiai buvo imti Anykščiuose ir už miesto ribų, įvertinta Anykštos upelio, komunalinių nuotekų valyklos įtaka Šventosios vandens užterštumui. Didžiausi biogeninių medžiagų kiekiai Šventojoje nustatyti už nuotekų valyklos, tačiau jie neviršijo DLK, išskyrus sausį. Pagal fizikinius-cheminius kokybės elementus – nitratų azotą (0,60 mg/l) ir amonio azotą (0,03 mg/l) Šventoji atitinka labai geros ir geros ekologinės būklės klasę, nes jos vandens kokybės reikšmės patenka atitinkamai į <0,10 mg/l ir 1,30–2,30 mg/l reikšmių intervalą.


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