Cross-linked polyvinyl polymers comprising charged groups and methods of making are disclosed. The polymers are effective and durable adsorbent of dyes from aqueous solutions. Also, a method of removal of dyes from contaminated water is disclosed.

The present invention provides a flocculant for catalytic decomposition of flue gas desulfurization wastewater treatment. The flocculant includes polyacrylamide, inorganic polymer, and an inorganic compound with low molecular weight. In the condition of using proper components, the flocculant has significant wastewater treatment performance.

Strontium oxide (SrO) nanoparticle and various concentrations of chitosan (CS)-doped SrO nanocomposite were synthesized via co-precipitation method. A variety of characterization techniques including were done for characterizing and qualifying the nanocomposite. X ray powder diffraction affirmed cubic and tetragonal structure of SrO nanoparticle and CS-doped SrO nanocomposite with a decrease in crystallinity upon doping. Fourier transform infrared spectrum endorsed existing functional groups on CS/SrO surfaces while d-spacing was estimated using high resolution Transmission electron rnicroscopes images. UV-Visible and PL Photoluminescence spectroscopy spectra showed an increase in band gap energies with an increase in doping concentration. Elemental composition of CS-doped SrO nanocomposite deposited with different doping concentrations was studied using Energy dispersive Spectroscopy. Addition of chitosan resulted in the formation of nanocomposite and rod-like structures that led to enhanced catalytic activity during methylene blue ciprofloxacin degradation in the presence of reducing agent sodium borohydrate at various pH conditions.

The invention relates to a material consisting of hard fibers on which nanoparticles of metals or metal oxides, preferably period IV transition metal oxides, are deposited, using different techniques, said material being used in the degradation and removal of contaminants found in liquid matrices. The invention also relates to a method for the in situ synthesis thereof.

Method for manufacturing an inert solid support with optionally functionalised carbon nanotubes (CNTs), comprising the steps of: i) providing an inert solid support and at least one catalytic metal associated with, or absorbed in, or adsorbed/deposited on, said support, said metal being optionally selected from among the group consisting of iron, cobalt, nickel, molybdenum and combinations thereof; ii) supplying a source of gaseous, liquid or solid carbon to the catalytic metal; iii) through chemical vapor deposition (CVD), depositing at least part of the carbon source at the catalytic metal as CNTs, stably connected to the inert solid support. The present invention further regards an inert solid support and a separation method.

Provided herein are lasso peptides libraries, and particularly molecular display libraries of lasso peptides. Also provided herein are related methods and systems for producing the libraries and for screening the libraries to identify candidate lasso peptides having desirable properties.

The present disclosure discloses an efficient and regenerable nano manganese remover, and a method for preparing same and application thereof, belonging to the technical field of wastewater treatment and reuse. The manganese remover of the present disclosure includes Fe.sub.3O.sub.4, RGO, SiO.sub.2 and EDTA. The Fe.sub.3O.sub.4 nanoparticles are supported on the surface of the RGO, the SiO.sub.2 coats the Fe.sub.3O.sub.4, and the EDTA is grafted on the SiO.sub.2. First, Fe.sub.3O.sub.4-RGO is prepared. Then, a TEOS-ethanol solution is dropwise added, and the resulting mixture is allowed to react to obtain Fe.sub.3O.sub.4@SiO.sub.2-RGO composite particles. Finally, an EDTA-water solution is dropwise added to obtain the manganese remover. The manganese remover prepared in the present disclosure is magnetic, and the preparation process is simple and easy for industrial production. The nano manganese remover can quickly remove manganese in manganese-containing wastewater. A small amount of the manganese remover can achieve a large adsorption capacity. Further, the nano manganese remover can be separated from the manganese-containing wastewater quickly, thereby avoiding secondary pollution to the system.

A method for treating effluent provides the effluent as an input to an apparatus having a vortex diode with aeration. The apparatus induces a cavitation assisted with aeration for the high rates of ammoniacal nitrogen in an orifice and the vortex diode with or without inserts/stabilizers to generate radicals, which reduce ammoniacal nitrogen of wastewater effectively during effluent treatments.

The present invention discloses a process and a composition for the treatment of wastewater. The composition comprises of microbes, enzymes and cofactors along with the nutrients. The composition is a synergistic composition and wastewater can be treated effectively for the removal of pollutants by using the synergistic composition.

An electrolysis electrode and a preparation method therefor, an electrolysis apparatus, and a clothing treatment device. The electrolysis electrode includes a substrate, a transition layer, and an electrode catalytic material layer, and the transition layer is attached to the surface of the substrate, the electrode catalytic material layer is attached to the surface of the transition layer, and the thickness of the transition layer satisfies that: electrons can pass through the transition layer. The transition layer of the electrolysis electrode is relatively thin, so that electrons can pass through the transition layer due to a quantum tunneling effect, and thus the electrocatalytic performance of the electrolysis electrode is basically not affected. Furthermore, the transition layer plays the role of transition connection, and can greatly improve the phenomenon of cracks in the electrode catalytic material layer.