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    Wyświetlanie 1-5 z 5
    Tytuł:
    Removal of clofibric acid and diclofenac during anaerobic digestion of sewage sludge
    Autorzy:
    Zhou, H.
    Zhang, Q.
    Zhang, Q
    Ma, L.
    Tu, B.
    Li, H.
    Zhou, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/207894.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    fermentacja beztlenowa
    osady ściekowe
    farmaceutyki
    kwas klofibrowy
    diklofenak
    anaerobic digestion
    sewage sludge
    pharmaceuticals
    clofibric acid
    diclofenac
    Opis:
    Removal of two acidic pharmaceuticals, clofibric acid and diclofenac, present in sewage sludge using two kinds of anaerobic digestions was investigated. The effective isolation and purification pretreatment to extract the target compounds from the sewage sludge samples was firstly established, followed by gas chromatography-mass spectrometry (GC-MS) analysis to identify and quantify them. Under mesophilic conditions, the removal efficiencies for clofibric acid and diclofenac with the initial concentrations of 5 μg /dm3 were up to 95% and 97%. After thermophilic anaerobic digestion, the removal efficiency could be increased to 99.3% for clofibric acid, however, it did not increase for diclofenac. In general, anaerobic digestion could effectively remove the target compounds from the sewage sludge (all above 90%).
    Źródło:
    Environment Protection Engineering; 2013, 39, 4; 63-77
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on relationship between carbon dioxide emissions, imports, exports, and population in China
    Autorzy:
    Jin, Q.-Y.
    Zhang, J.
    Gao, Y.-Q.
    Su, X.
    Fu, Y.-S.
    Powiązania:
    https://bibliotekanauki.pl/articles/207318.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    population statistics
    carbon dioxide
    global warming
    carbon dioxide emissions
    total carbon
    statystyki ludności
    dwutlenek węgla
    globalne ocieplenie
    emisja dwutlenku węgla
    węgiel całkowity
    Opis:
    Empirical relationships between carbon dioxide emission, imports, exports, and population have been investigated. An empirical model with carbon dioxide emissions, structure and scale of import and exports, populations was built Using ridge regression analysis and observed data from 1985 to 2006 in China, we examined the relationship between each part of carbon dioxide emission and corresponding coefficients, including GIV (gross imports value), GXV (gross exports value), and P (populations). The results have shown that the increasing trend in TCOE (total carbon dioxide emissions) was determined by the exports, while its standard level is determined by population. Increasing the imports may reduce TCOE. Considering working to expand economy, the best ways for China to reduce TCOE are to introduce advanced technology and take actions to guarantee strict execution of cut-emission policy. Although the increasing imports also can reduce TCOE, it is not reasonable for the global cut-emission policy. To control population is not applicable as the immense population base, so government's publicity for low-carbon live is a necessary and feasible way to reduce carbon dioxide emission.
    Źródło:
    Environment Protection Engineering; 2014, 40, 2; 75-85
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation, characterization and coagulation behaviour of a novel inorganic coagulant - polyferric(III)-magnesium(II) sulfate
    Autorzy:
    Liu, Z.
    Li, S.
    Zhang, H.
    Nie, F.
    Wang, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/207302.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    coagulation
    infrared spectroscopy
    magnesium
    wastewater treatment
    textile wastewater
    coagulant
    koagulacja
    spektroskopia w podczerwieni
    magnez
    oczyszczanie ścieków
    ścieki włókiennicze
    koagulant
    Opis:
    A novel coagulant, polyferric(III)-magnesium(II) sulfate (PFMS), was prepared. The preparation technology was optimized and the optimized PFMS product was used to treat actual textile wastewater. The performance of PFMS was evaluated and compared with those of conventional coagulants. X-ray diffraction and infrared spectrometry show that PFMS is a macromolecular composite polymer of ferric and magnesium based on -OH bonds. The coagulation performance of PFMS is better than those of PFS, PAC, and PFC. The coagulation mechanism of PFMS in treating actual textile wastewater is primarily driven by charge neutralization at low dosages and co-precipitation netting at high dosages.
    Źródło:
    Environment Protection Engineering; 2013, 39, 3; 57-71
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kinetics of photoelectrocatalytic degradation of diclofenac using N, S co-doped TiO2 nano-crystallite decorated TiO2 nanotube arrays photoelectrode
    Autorzy:
    Cui, Y.
    Deng, X.
    Ma, Q.
    Zhang, H.
    Cheng, X.
    Li, X.
    Xie, M.
    Cheng, Q.
    Li, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/207955.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    effluents
    nanotubes
    sodium sulfate
    sulfur compounds
    yarn
    photoelectrocatalytic degradation
    ścieki
    nanorurki
    siarczan sodu
    związki siarki
    przędza
    Opis:
    As a non-steroidal anti-inflammatory drug, diclofenac, was commonly used as analgesic, antiarthritic and antirheumatic, and has frequently been detected in municipal wastewater treatment plants (MWTPs) effluents and demonstrated to be potentially environmental risk on human beings. In the present study, N, S co-doped TiO2 nano-crystallites decorated TiO2 nano-tube arrays (N, S-TiO2 NCs/TiO2 NTAs) photoelectrode was used to degrade diclofenac containing wastewater. In addition, the effects of some critical parameters including initial pH, external positive potential, sodium sulfate concentration and initial diclofenac concentration on the photoelectrocatalytic (PEC) degradation of diclofenac containing wastewater and dynamic characteristics were investigated systematically. Results showed that N, S-TiO2 NCs/TiO2 NTAs photoelectrode exhibited high PEC efficiency for the degradation of diclofenac, in which the PEC processes fitted well with the Langmuir–Hinshelwood (L–H) model. Furthermore, external additional anions such as Cl–, ClO– and NO3 – played an important role in inhibiting the degradation of diclofenac. Also, the N, S-TiO2 NCs/TiO2 NTAs photoelectrode possessed good stability for consecutive applications for degradation of diclofenac, which could potentially be utilized in wastewater treatment.
    Źródło:
    Environment Protection Engineering; 2018, 44, 2; 117-130
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of phosphorus recovery by struvite crystallization from animal manure wastewater in China
    Autorzy:
    Fang, C.
    Zhang, T.
    Czechowska-Kosacka, A.
    Pawlowski, A.
    Łagód, G.
    Jiang, R.
    Wang, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/207381.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    animal manure wastewater
    phosphorus recovery
    struvite
    płynne odchody zwierzęce
    odzysk fosforu
    struwit
    Opis:
    Intensive farming is main industry which produces large amount of animal manure wastewater with high content of phosphorus. Its discharging to surface water leads to eutrophication. On the other hand, phosphorus is vital for plant growth and its natural reserves are rapidly exhausted. Therefore, recovering phosphorus from animal manure wastewater can achieve two important goals: prevention of eutrophication and recovery of non-renewable phosphorus compounds. The method of struvite precipitation has been presented for phosphorus recovery from animal manure wastewater. Based on scenario study, 8.76 million tons of struvite could be produced from animal manure wastewater in China.
    Źródło:
    Environment Protection Engineering; 2015, 41, 4; 195-207
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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