Integrated process scheme for the combined treatment of liquid wastes and municipal wastewaters: a process analysis

2015 ◽  
Vol 57 (6) ◽  
pp. 2555-2563 ◽  
Author(s):  
Marina Prisciandaro ◽  
Giuseppe Mazziotti di Celso ◽  
Dino Musmarra ◽  
Angelo Zammartino
Author(s):  
C. Weiss ◽  
F. Pousse ◽  
K. Ghodasara ◽  
M. Linicus ◽  
E. Jüngst ◽  
...  

2020 ◽  
Vol 92 (11) ◽  
pp. 1790-1796
Author(s):  
Katja Schaldach ◽  
Hans‐Werner Schröder ◽  
Volker Herdegen ◽  
Vinh Nang Do

2014 ◽  
Author(s):  
C. Weiss ◽  
F. Pousse ◽  
K. Ghodasara ◽  
M. Linicus ◽  
E. Jüngst ◽  
...  

Author(s):  
М.Г. Зубов ◽  
Е.В. Вильсон ◽  
Д.И. Обухов

В состав сточных вод аэровокзалов входят хозяйственно-бытовые и производственные стоки от технологического оборудования пищеблока. Технологические схемы очистки сточных вод аэровокзалов не предусматривают прием и очистку жидких отбросов от биотуалетов самолетов, которые являются высококонцентрированными по показателям ХПК, азот аммонийный, фосфор. Кроме того, они содержат высокие концентрации дезинфицирующих средств, действующим веществом которых являются четвертичные аммониевые соли (ЧАС), токсичные для микроорганизмов. В результате поступления жидких отбросов на действующие очистные сооружения аэровокзала качественные показатели биологической очистки сточных вод значительно ухудшились, также изменились свойства биоценоза биопленки. Целью исследований являлось определение способа снижения концентрации ЧАС до значений, при которых прекращается токсичное воздействие на биоценоз биопленки, и определение соответствующей технологической схемы. Представлен анализ литературных данных по воздействию ЧАС на микроорганизмы активного ила, на основании которого выполнены лабораторные исследования и разработан способ подготовки жидких отбросов из биотуалетов самолетов для последующей их совместной очистки с хозяйственно-бытовыми сточными водами аэропорта. В ходе испытаний определена эффективность сорбции предварительно регенерированным избыточным активным илом загрязняющих веществ, в том числе и ЧАС. Определены технологические параметры процессов, разработана и внедрена эффективная, надежная, простая в эксплуатации технологическая схема совместной очистки хозяйственно-бытовых сточных вод аэровокзала и жидких отбросов биотуалетов самолетов. The composition of the wastewater of air terminals includes sewage and industrial wastewater from the technological equipment of the food unit. Process flow schemes for wastewater treatment of air terminals do not provide for the reception and treatment of liquid wastes from water closets of aircrafts, that are highly concentrated in terms of COD, ammonium nitrogen, phosphorus. In addition, they contain high concentrations of disinfectants with quaternary ammonium salts (QAS) as an active ingredient toxic to microorganisms. As a result of liquid waste discharge to the operating treatment facilities of the air terminal, the quality indicators of biological wastewater treatment have significantly deteriorated, and the properties of the biocenosis of the biofilm have also changed. The aim of the research was to determine a method for reducing the concentration of QAS to the level where the toxic effect on the biofilm biocenosis ceased, and to develop an appropriate process flow scheme. An analysis of the literature data on the impact of QAS on activated sludge microorganisms is presented; on this basis laboratory studies were carried out and a method was developed for the pre-treatment of liquid waste from aircraft water closets for the subsequent combined treatment with the air terminal sewage. In the course of the tests, the efficiency of pollution sorption, including QAS, by the preliminary regenerated excess activated sludge was determined. The technological parameters of the processes were determined; an efficient, reliable, easy-to-use process flow scheme for the combined treatment of sewage of the air terminal and liquid waste of water closets of aircrafts was developed and implemented.


2018 ◽  
Vol 108 ◽  
pp. 198-206 ◽  
Author(s):  
V. Innocenzi ◽  
A. Zammartino ◽  
G. Mazziotti di Celso ◽  
S. Chianese ◽  
D. Musmarra ◽  
...  

VASA ◽  
2018 ◽  
Vol 47 (3) ◽  
pp. 235-241 ◽  
Author(s):  
Soon Cheon Lee ◽  
Jin Hyun Joh ◽  
Jeong-Hwan Chang ◽  
Hyung-Kee Kim ◽  
Jang Yong Kim ◽  
...  

Abstract. Background: Endovascular treatment is an alternative first-line management for peripheral artery disease (PAD). Hybrid treatment (HT) is defined as a combined treatment for patients with PAD using endovascular and open surgery, simultaneously performed in an operating room. The results of HT are reportedly good for multilevel revascularization (MR) in patients with chronic limb ischaemia, and even in older high-risk patients. The goal of this study was to examine the clinical and haemodynamic outcomes of HT in patients who need MR. Patients and methods: Nine university hospitals in Korea participated in this multicentre study. A total of 134 patients with multilevel PAD underwent HT and MR. Patients were enrolled from July 2014 to June 2015 and were followed for 18 months. Results: The mean age of the patients was 68.8 ± 9.93 years and 88.1 % were men. Patients with Rutherford category 2 to 3 and 4 to 6 comprised 59.0 % and 42.0 % of the group, respectively. The technical success rate was 100 %. The primary patency rates at 12 and 18 months were 77.6 % and 63.9 %, respectively. The primary-assisted patency rates at 12 and 18 months were both 90.0 %. The pre-operative mean ankle brachial index (0.43 ± 0.23) increased to 0.87 ± 0.23 at six months post-operatively (t-test, p < 0.05). The amputation free survival rate was 97.1 %. Conclusions: Although outcomes of multilevel PAD are reportedly poor when endovascular treatment alone is used, we have shown that HT is a feasible alternative modality for patients with multilevel PAD, with satisfactory amputation-free survival and freedom from re-intervention rates.


Author(s):  
Frank Häßler ◽  
Olaf Reis ◽  
Steffen Weirich ◽  
Jacqueline Höppner ◽  
Birgit Pohl ◽  
...  

This article presents a case of a 14-year-old female twin with schizophrenia who developed severe catatonia following treatment with olanzapine. Under a combined treatment with amantadine, electroconvulsive therapy (ECT), and (currently) ziprasidone alone she improved markedly. Severity and course of catatonia including treatment response were evaluated with the Bush-Francis Catatonia Rating Scale (BFCRS). This case report emphasizes the benefit of ECT in the treatment of catatonic symptoms in an adolescent patient with schizophrenic illness.


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