54results about How to "Improve weight reduction effect" patented technology

The invention relates to a step-feed biological nitrogen removal and sludge decrement coupling bioreactor and a process thereof, belonging to the field of sewage treatment and aiming to overcome the technical defect that the sludge output is large, and the total nitrogen removal effect of sewage with a low carbon-nitrogen ratio is poor. The bioreactor sequentially comprises a biological reaction area and a secondary clarifier, wherein a biological reaction area sequentially comprises an aerobic area, an anoxic area, an aerobic area, an anoxic area, an aerobic area, an anoxic area, an aerobic area and an anoxic area, and the volume ratio of each aerobic area to each anoxic area is (1.5:1)-(2:1); a porous carrier is arranged inside the biological reaction area; the carrier filling volume ratio of the aerobic areas is 40-60 percent, and the carrier filling volume ratio of the anoxic area is 90-100 percent; and all the areas are respectively provided with a baffle plate. The bioreactor is divided into three water inlet stages, the secondary clarifier is provided with a water outlet pipe and a sludge discharge pipe, and backflow sludge is conveyed to the aerobic areas O-I through a pump. The TN removal ratio of the bioreactor is 75.3 percent, the COD removal ratio is 94.3 percent, and the sludge productivity is 0.102kgMLSS / kgCOD.

The invention discloses a terylene deweighting dyeing assistant, and a preparation method and a use thereof. A raw material formula of the terylene deweighting dyeing assistant comprises, by mass, 10-15% of ethylene glycol monobutyl ether, 10-15% of 1,4-butanolide, 10-20% of fatty alcohol polyoxyethylene ether, 10-20% of secondary alkane sulphonate, and the balance water, wherein the molecular formula of the fatty alcohol polyoxyethylene ether is RO-(CH2CH2O)n-H, n is 7-9 or 15-20, and R is a C12-18 alkyl group; and the molecular formula of the secondary alkane sulphonate is R'SO3Na, and R' is a C10-13 alkyl group. The terylene deweighting dyeing assistant guarantees the terylene dyeing effect and the silk like effect and adopts a one-bath technology; and compared with traditional technologies, the technology has the advantages of saving of a lot of time, energy and substances, and great reduction of the pollutant emission.

The invention relates to cleaning integration sewage treatment system comprises cubic cycle oxidation channel sewage treatment reaction zone to remove organic pollutant, ammonia nitrogen, and suspended solid, vertical flow composite biological sludge decrement reaction zone to decrease sludge from super zone by protozoan or metazoan, and biological deodorization reaction zone to remove hydrophilic and hydrophobic odor material from super zone by fungi and bacteria, with volume proportion as 100-200: 2-10: 1. This invention has well treatment effect to a plurality of sewage, and has floor area decreases 50% compared with traditional method.

The invention relates to a self-heating high temperature aerobic treatment device for sewage sludge. An outlet end of a pre-condensing device (1) is communicated with a first sludge conveying tube (6) through a cold sludge inlet end. The first sludge conveying tube is provided with a first sludge pump (6a). A heated sludge outlet end of a heat exchanger (2) is communicated with a second sludge conveying tube (7) through a self-heating high temperature aerobic digestion reactor (3). An outlet end of the self-heating high temperature aerobic digestion reactor (3) is communicated with a hot sludge inlet end of the heat exchanger (2) through a third sludge conveying tube (8). The third sludge conveying tube is provided with a second sludge pump (8a). A cooled sludge outlet end of the heat exchanger (2) is communicated with a denitrification reactor (4) through a fourth sludge conveying tube (9). An outlet end of the denitrification reactor (4) is communicated with an inlet end of a sludgedehydrating device (5) through an output tube (10) which is provided with a third sludge pump (10a). A peculiar smell treatment device (11), a wind guide tube (12) and a draught fan (12a) are arranged.