A composition in the form of a tablet for neutralizing toilet odor and preventing bacterial growth comprising proteolytic enzymes (protease) and a complex of sodium bicarbonate, citric acid, and a surfactant for foaming, as well as EDTA disodium (Trilon B), sodium percarbonate, dye, and fragrance.

A composition for temporarily-hydrophobic and oil-absorbent powder. The present invention cleans and neutralizes oily and toxic substances from items in water of bodies of water such as ocean floors or along the surface of bodies of water. The present invention initially repels water or water-based substances and then absorbs oil-based substances. The composition includes a quantity of quicklime, a quantity of oil, a quantity of earthworm enzymes, a quantity of water, a quantity of detergent, and a quantity of rubbing alcohol. The quantity of quicklime, the quantity of oil, the quantity of earthworm enzymes, the quantity of water, the quantity of detergent, and the quantity of rubbing alcohol are heterogeneously mixed into an absorbent slurry blend.

Methods and systems for converting ammonium waste streams into certifiably Organic ammonium salts having a variety of uses in greenhouse gas-reducing activities are herein described. The resulting ammonium salt compositions can be used to enhance crop yield.

An apparatus for refractory organics conversion into biogas includes an anaerobic digester configured to be fed with organic material comprising refractory organics and to generate biogas and a digestate comprising at least a part of the refractory organics, wherein the apparatus comprises a device for a controlled partial oxidation of the refractory organics comprising an inlet configured to be fed with refractory organics and means configured to control the residence time of the refractory organics within the device for a controlled partial oxidation, so as to partially degrade refractory organics. A method for refractory organics conversion into biogas carried out using such an apparatus is also provided.

The present invention relates to a method for cleaning process water circulated in a paper recycling system, comprising a process water treatment step, which comprises at least one pre-acidification step and at least one anaerobic cleaning step, wherein at least some of the process water to be cleaned is subjected to hydrolysis and acidification in the at least one pre-acidification step and the process water thus treated is then brought into contact with anaerobic microorganisms in the at least one anaerobic cleaning step in order to break down impurities in the process water, wherein at least one saccharide-splitting enzyme is added to the process water before or during the pre-acidification step, and the pH of the process water is set to 8.0 or lower at least during the at least one pre-acidification step and during the at least one anaerobic cleaning step.

A method for treating dye wastewater includes: firstly, homogenizing the dye wastewater to balance the quality of the dye wastewater from different processes; then subjecting the homogenized dye wastewater to anaerobic treatment to remove most of chemical oxygen demand (COD) and total suspended solids (SS) in the wastewater; and finally subjecting the dye wastewater after the anaerobic treatment to circulating anaerobic-oxic treatment in a membrane bioreactor (MBR). In the present invention, the MBR is filled with a quinone-based hollow fiber membrane. The quinone acts as an electron mediator to accelerate an enzymatic reaction for dye decolorization during the anaerobic process, thereby achieving the purpose of efficient decolorization. The oxic treatment process further removes the COD and SS in the wastewater, so that the effluent meets a first-level discharge standard.

A method for modifying a wastewater treatment device, the method including: 1) fixing a filling support in a wastewater pool, where the filling support includes a support frame; the support frame includes a hollow shaft, a fixed ring, and at least one vane; 2) adjusting the height of the filling support, until the fixed ring is submerged below the liquid level of the wastewater pool, where the water intake velocity of the wastewater pool is no less than 0.25 m/s, whereby a water current is produced and drives the support frame to rotate; 3) adding a functional liquid into the hollow shaft; and 4) adding an enzyme mixture to the hollow shaft when the rotation speed of the support frame is less than a first preset value, until the rotation speed of the support frame reaches a second preset value.

A nanobiocatalytic membrane for a filtration system is provided which includes a filtration membrane and a plurality of nanobiocatalyst nanoparticles associated with the membrane, each of the nanobiocatalyst nanoparticles including a core, a coating at least partially surrounding the core, and a plurality of nanobiocatalysts coupled to the coating. Each of the plurality of nanobiocatalysts includes an antibacterial nanoparticle comprising bismuth, and a quorum quenching agent coupled to the antibacterial nanoparticle. A nanobiocatalyst nanoparticle for use with a water purification system is also provided. A method of forming a nanobiocatalytic membrane for a filtration system and a method of using a nanobiocatalytic membrane in a filtration system are also provided.

Method for preparing a natural organic macromolecular water treatment agent including: dissolving amylose corn starch in an alkali solution, stirring for 30 min, to obtain a suspension, freezing the suspension to fully frozen state, melting and dialyzing, to obtain a corn starch dispersion; mixing a modified flax fiber, the dispersion, nano-hybrid silica and distilled water, performing 800 W ultrasonication for 10 min, to obtain a treated suspension; taking an amount of a superabsorbent macromolecular resin with a certain shape, making it absorb water and swell into a solid hydrogel with the certain shape; mixing the solid hydrogel and the treated suspension, static defoaming, loading into a mold and solidifying, drying until the solid hydrogel is completely dehydrated, to obtain a hollow agent; spraying a catalytic degrading agent/toxin degrading agent on the surface of the hollow agent and/or the inner wall of holes thereof, to obtain the target agent.

An object of the invention is to provide a water treatment agent useful for reducing the MLSS and the like in a food factory effluent or the like and for reducing the total nitrogen of a water to be treated including nitrogen-containing compounds, a method for producing the water treatment agent, a method for treating water to be treated using the water treatment agent, and a kit for producing the water treatment agent. The water treatment agent of the invention is a water treatment agent that contains green rust and an enzymatic treatment agent containing a liver extract from a mammal (excluding a human being), a yeast lytic enzyme, lactate dehydrogenase, a glucose dehydrogenase, and water.