5 results about "Suspended solids" patented technology

The invention discloses a sludge-containing wastewater treatment method which comprises the following steps: (1) firstly removing large suspended solids in wastewater; (2) lifting the wastewater into an aerated grit chamber, and removing sand, coal cinder and other particles with high specific gravity in the sewage; (3) enabling the sewage to enter a circular primary sedimentation tank to be pre-treated, and removing fine suspended organic matters; (4) enabling the water to enter an aeration tank, enabling the water to enter a circular secondary sedimentation tank to perform mud-water separation, returning partial activated sludge to the aeration tank, disinfecting the effluent in a chlorination contact tank, and discharging the water into a water body through a Parshall flume; (5) mixing the sludge in the primary sedimentation tank, the aeration tank and the secondary sedimentation tank, and enabling the sludge to enter a sludge thickener; and (6) returning the supernatant in the sludge thickener to the primary sedimentation tank to be treated again, treating the sludge containing organic matters by a sludge digestion tank, dewatering the digested sludge by a belt filter press, airing the sludge, and outward transporting the sludge. The treatment method disclosed by the invention has the beneficial effects that the sludge separation rate reaches 80% or higher, and the wastewater emission is higher than the emission standard.

The invention provides a dredging agent containing Anoxybacillusrupiensis. The dredging agent comprises a biocatalyst, a nonionic surfactant, an Adina rubella Hance root extract, an aloe extract, an eyebright extraction stock solution, a biological enzyme active agent, EDTA chelated iron, citric acid, protocatechuic acid, compound vitamin, a substrate, a porous sodium type activated zeolite powder carrier, halophilic bacteria, Anoxybacillusrupiensis, and an adhesive. The invention also provides application of the dredging agent containing Anoxybacillusrupiensis in a subsurface salt drainage pipe. The dredging agent provided by the invention has the following advantages: the alga-killing rate is improved and reaches 87 to 92%; good dredging effect is achieved; the quality of treated water is transparent and bright, has high transparency and is free of suspension; the quality of the water of a control group is yellowing and turbid, and contains black suspended solids with a concentration of 3 to 5%; and after dredging is completed, the salt water collection rate of the subsurface salt drainage pipe is improved and reaches 119.8 to 132.6%, while the salt water collection rate of the control group is 100%.

The invention discloses a waste water recycling method. The method comprises the following steps: conveying waste water into a waste water pool, and conveying the waste water in the waste water pool into an activated carbon tank through a lifting pump; filtering suspended solids and colloidal substances in the wastewater through activated carbon; feeding the wastewater with the adjusted PH value into an ultrafiltration device, and then removing colloidal substances in the wastewater; conveying the treated wastewater into a reverse osmosis RO membrane system, wherein the reverse osmosis RO membrane system is used for concentrating and separating concentrated water and fresh water according to the ratio of 1:4; and directly applying the concentrated and separated fresh water to a water point for production, adjusting the pH value of the concentrated and separated concentrated water to 6-7, feeding the concentrated water into a CME electrolysis device through a pump for electrolytic oxidation, treating the concentrated water, and conveying the treated concentrated water into a wastewater collection tank. The invention provides a wastewater recycling method which is simple, convenient to operate, stable and reliable in performance and long in service life, can be applied to pretreated wastewater in all walks of life, and can be used for effectively recycling the wastewater.

The invention discloses a mariculture tail water discharge purifier and a treatment method thereof. Mariculture tail water is poured into a first purification box from a water inlet hopper, suspended solids in the mariculture tail water are filtered out, the mariculture tail water flows into a second purification box from the first purification box, a rotating motor is controlled to operate, and a rotating rod is driven to rotate, so that a scraping plate scrapes suspended matter adhered to the interior of a filtering cup, a valve is opened, the mariculture tail water is discharged through a discharging pipe, the valve is closed, a next round of mariculture tail water filtering is carried out, and through the arrangement of the structure, the purification effect on the mariculture tail water is improved.