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The role of white rot fungus in the treatment of dye wastewater has been widely researched. Numerous genera of fungi have assumed responsibility for dye decolorization, either in living or dead form. This study looks at the degradation of an acidic dye, indigo carmine (IC), as the medium in an aqueous solution by means of biological degradation in dead fungus of Heterobasidion Insulare. The dye decomposition...
The potential of two Cd-hyperaccumulators, Solarium nigrum L. (SN) and Beta vulgaris L. var. cicla L. (BV), as phytoremediation plants to remove Cadmium (Cd) from contaminated water was evaluated in hydroponics. The results showed that Cd exposure induced chlorosis and inhibited biomass growth in SN. However, these symptoms did not appear in BV. In BV, the Cd concentrations increased from 14.2 to...
Degradation of shrub meadows and reclamation of alpine meadows may heavily affect the soil sink for atmospheric methane (CH₄), but this is poorly understood. Therefore, in situ measurements of atmospheric CH₄ consumption were conducted in four landuse types: natural alpine meadow (NM), Elymus nutans pasture (EP), herbaceous meadow in shrub (HS), and a P. fruticosa shrub meadow (PS) within two years...
The aim of this study was to assess the effect of sodium alginate-immobilized bacteria and ultrasonic assistance on the biodegradation of oestrogens in soil. The studied oestrogens were oestrone (E1), oestradiol (E2), oestriol (E3), 17α-ethinylestradiol (EE2), and bisphenol-A (BPA). A central composite design was developed to determine the optimal conditions of the three variables (ultrasound time,...
In order to identify 16 priority polycyclic aromatic hydrocarbons present in the surface sediments of Taihu Lake, 41 surface sediment samples were analyzed by GC-MS. The total concentrations of PAHs ranged from 262.06 ng/g to 1087.22 ng/g (dry weight). The source apportionment of PAHs by positive matrix factorization model indicated that the main source of PAHs in surface sediments of the lake were...
Polycyclic aromatic hydrocarbon (PAH) samples in particles were collected with a PM₁₀ sampler in rural areas of Beijing. PAH samples collected on quartz fiber filters were first extracted using dichloromethane with ultrasonic methods, and then were fractionated on an alumina-silica column. Finally, the aromatic and n-alkane fractions were analyzed by gas chromatography with mass spectrometry and gas...
For the primary purpose of minimizing carbon dioxide emissions in a megalopolis, an optimization model that remarkably reduces carbon emissions for the megalopolis, which is based on the inexact chanceconstrained linear programming (ICCLP) method and incorporates interval linear programming (ILP), and chance constrained programming (CCP), has been constructed. The corresponding net emissions of carbon...
In order to overcome the defects of stronger subjectivity of common assessment methods of marine ecological environmental assessment, the entropy weight model was introduced. In the comprehensive assessment, because of different influence degrees of each index to the comprehensive assessment results, different improved measures can be adopted to increase policy ability. As Shannon information entropy...
The single and joint effects of cadmium(Cd) and benzo (a) pyrene (B[a]P) on the seedling growth and antioxidant enzyme activities of wheat (Triticum aestivum L.) were investigated after 4, 8, and 11 days of exposure under10 mg·L⁻¹ Cd and 54 mg·L⁻¹ B[a]P combined stress. In comparison with the control, the reductions under Cd + B[a]P stress treatment of Chl a, Chl b, Chl a+b and Chl a/b ratio were...
In this study, taking drought disaster-causing factors like precipitation, temperature, reference evapotranspiration, and the degree of drought severity based on the drought index as study objects, the characteristics of these above elements against the background of global warming were analyzed by using the method of climate statistics. The data include a variety of climate observations of 129 meteorological...
Sediment erosion and nutrient release play a significant role on the degradation of water quality and eutrophication in large shallow lakes. Lake Taihu, the third largest freshwater lake in China, is suffering severe eutrophication and internal nutrient release. In this paper, sediment cores were sampled in different lake regions to determine sediment properties (e.g. particle size and bulk density),...
Enteromorpha prolifera green algae is the main species that causes green tide in China’s Yellow Sea. To effectively realize the resourceful utilization of this biomass, batch experiments were carried out to investigate factors that impact the Acid Bordeaux B (ABB) absorption of E. prolifera powder, such as exposure time, pH, adsorbent dose, and oscillation frequency. The dye adsorption onto adsorbent...
A new hybrid inorganic-organic copolymer, aluminum chloride-poly(acrylamide-co-acrylic acid), was prepared using the free radical polymerization method and employed in this study. The hybrid copolymer was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive x-ray spectroscopy (EDS). This hybrid copolymer was used in the flocculation...
The aim in this study was to assess relationships between men exposure to lead and semen-quality parameters in an environmental pollution site. We recruited 95 men through the pollution area and two controls. We measured semen quality using computer-aided semen quality analysis, and lead levels in seminal plasma using graphite gurnace atomic absorption spectroscopy. The results showed that the semen...
To quantify the emission of airborne aetinomycetes from the wastewater treatment plant (WWTP), the concentration and size distribution of airborne culturable actinomycetes were examined with a six-stage cascade impactor in a municipal WWTP with oxidation ditch process in Xi'an, China from June to July 2011. Simultaneously, characteristics of airborne bacteria were also measured to compare with data...
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