797results about How to "Improve water purification effect" patented technology

The invention relates to a method for coagulating coal-bed gas produced water, which is realized in a way that: coal-bed gas produced water is coagulated by combining a chemical compounded from an inorganic coagulant and an organic flocculant with a coagulation assistant, or combining an inorganic coagulant, an organic flocculant and a coagulation assistant; a pretreatment pool is arranged at the outlet of the coal-bed gas produced water, a coagulation assistant dissolving box is arranged at the water inlet of the pretreatment pool, and the amount of the coagulation assistant is controlled by using a measuring pump or flowmeter; and the coal-bed gas produced water is firstly conditioned by the coagulation assistant, and then treated by the chemical compounded from the inorganic coagulant and the organic flocculant, or treated by combining the inorganic coagulant and organic flocculant. The amounts of the compounded or combined inorganic coagulant and organic flocculant are controlled by using the measuring pump or flowmeter, thereby effectively removing suspended matters in the coal-bed gas produced water, being beneficial to removing oil, multiple soluble ions, other organic substances and the like, reducing the consumption of chemicals and relieving the treatment load of the subsequent technique, so that the treated produced water can be discharged under the standard or can be conveniently recycled.

The invention discloses a method for preparing inorganic polymeric flocculant polyferric silicate sulfate and a wastewater treatment method. Ferrous sulfate is oxidized into polyferric sulfate through the acclimated thiobacillus ferrooxidans; polymerization reaction is conducted between the polyferric sulfate and the active polysilicic acid solution; and then the polymerization reaction product is left to stand and ageing to obtain the brownish red liquid polyferric silicate sulfate. The product brownish red liquid polyferric silicate sulfate is applicable to the purification of domestic sewage, printing and dyeing wastewater and heavy metal wastewater and COD removal rate, decoloring rate and heavy metal removal rate can reach more than 90%.

The method is to do photochemical oxidizing reaction to sewage preprocessed by chemical coagulating sedimentation. Special photochemical oxidizing apparatus is used to make sewage being fully mixed with nanometre photochemical catalyst powder on condition of lighting, then producing photochemical oxidizing reaction, thus harmful substances are oxidized and reducted.

The invention discloses an algae-controlling laterite compound flocculant as well as a preparation method and applications thereof. The method comprises the following steps: mixing 64.52-86.42% of laterite, 7.41-19.35% of polyaluminium chloride and 6.17-16.13% of ferric trichloride, and then milling to obtain the algae-controlling laterite compound flocculant. Compared with the methods by independently adding ferric trichloride or polyaluminium chloride, the algae-controlling laterite compound flocculant can obtain higher turbidity and higher chlorophyll a clearance rate, i.e. favorable effects for clearing algae and purifying water. Furthermore, with similar turbidity and chlorophyll a clearance rate, the quantities of the polyaluminium chloride and the ferric trichloride contained in thealgae-controlling laterite compound flocculant are lower than those of the polyaluminium chloride and the ferric trichloride which are independently used so as to save the cost and enhance the safetyof the flocculant in utilization. The algae-controlling laterite compound flocculant has the advantages of simple preparation procedure, moderate cost and favorable effects for clearing algae and purifying water, and is especially suitable for water bloom emergency treatment.

The invention belongs to the technical field of environment-friendly water treatment, particularly relates to a water purifying agent for wastewater treatment of tire production enterprises and further relates to a method for treating wastewater of the tire production enterprises by adopting the water purifying agent. The water purifying agent contains an inorganic water purifying agent, a microbial water purifying agent and an enzyme preparation, wherein the inorganic water purifying agent is prepared from the ingredients in parts by weight: 5-20 parts of polyaluminum chloride, 4-16 parts of polyacrylamide, 2-15 parts of ferrous sulfate and 5-16 parts of aluminum sulfate; the microbial water purifying agent is prepared from the ingredients in parts by weight: 0.5-2.0 parts of nitrobacterium powder, 0.4-1.4 parts of paracoccus denitrificans powder, 0.2-0.8 part of thiobacterium powder and 0.3-1.2 parts of aniline degrading bacteria powder; the enzyme preparation is prepared from the ingredients in parts by weight: 0.1-1.5 parts of pectinase, 0.4-1.5 parts of cellulase, 0.1-0.8 part of dehydrogenase, 0.2-0.8 part of oxidoreductase and 0.1-0.6 part of xylanase. The water purifying agent and the method have the beneficial effects that by adopting the water purifying agent for wastewater treatment, disclosed by the invention, the water purifying effect is good, the water purifying speed is high, the safety is high, and no secondary pollution is caused; materials with adsorption capacity are used as raw materials and are assisted with microbes, so as to treat the wastewater, so that the range of use is wide, the transparency of treated water is extremely high, and recycling can be achieved.

The invention discloses a device for the bionomic control of water body algae blooms and a preparation method thereof. A plant algae inhibiting unit consists of dry plant body fragments, a waterproof small-mesh gunny bag and a waterproof nylon rope; the waterproof small-mesh gunny bag is sealed by the waterproof nylon rope and is tied on a main rope; a phycomycete biological film water purification unit consists of a porous polymer light suspended filler, a phycomycete biological film, a waterproof nylon rope and a waterproof small-sized nylon mesh bag; the waterproof small-sized nylon mesh bag is tied at the bottom of the porous polymer light suspended filler; and one end of the waterproof nylon rope is tied on the top part of the porous polymer light suspended filler, while the other end is tied on the main rope. The preparation method comprises the following steps: a, collecting integral calamus plants from field, and cleaning and naturally drying the calamus plants; b, crushing the dried calamus plants obtained in the step a into fragments, and filling the fragments into the gunny bag; c, adopting the porous polymer light suspended filler; d, clipping the filler; e, performing pretreatment on the filler; and f, combining the plant algae inhibiting unit and the phycomycete biological film water purification unit. The device has the advantages of readily available raw materials, low cost, no secondary pollution and obvious effect.

A treating agent for the sewage generated by fabric printing and dyeing is prepared from active bentone, active palygorskite clay, aluminum polychloride and polyacrylamide through pre-treating, proportional mixing, and stirring to obtain powder.

The invention belongs to the technical field of light bricks and particularly relates to a light brick capable of purifying water quality. The light brick capable of purifying water quality comprises a brick casing and a brick core arranged in the brick casing, wherein the brick core is made of activated carbon, and the brick casing is made of sludge, construction waste, potassium feldspar powder, coal ash and cement. The light brick manufactured by a manufacture method thereof is light in weight, has well water quality purifying function, can maintain long-time ecological balance when applied in river barrage building and enables the water to be clear and green.

The invention discloses a combined double-vortex efficient muddy water purification device. The device comprises a vertical independent tank which is provided with a water outlet, a water inlet and a mud outlet; a water distribution unit is arranged in the tank of the purification device, and is composed of a sludge gathering area, a mixing area, a push-type reaction area, a clarification and sedimentation area and an inclined-tube sedimentation area from bottom to top; a path from the water inlet to a coarse granular sludge gathering area of the sludge gathering area is additionally provided with a hydraulic mixing desanding chamber which is internally provided with filler for mixing water with drugs; and a water inlet of the hydraulic mixing desanding chamber is equipped with a fluid distribution unit enabling fed water to rotate. The device disclosed by the invention can overcome the defects in the prior art well, save the occupied space and improve the work efficiency, and has a remarkable water purification effect.

Relating to the field of water environment ecological restoration, the invention provides a high efficiency combined restoration technology for urban and rural river polluted river water bodies. The invention comprehensively utilizes a solar energy micropore aeration technology, an ecological base, a microorganism-enzyme composite reinforcement restoration technology, an ecological floating island, aquatic animal throwing and other methods to reduce nitrogen, phosphorus and other organic matters and pollutants in water bodies, thus purifying river water bodies, optimizing the aquatic ecosystem, and simultaneously achieving a landscape optimizing effect.

The invention belongs to the technical field of environment-friendly water treatment, particularly relates to a water purifying agent for treating sewage resulting from recovery of waste/used tires and further relates to a method for treating the sewage resulting from the recovery of the waste/used tires by adopting the water purifying agent. The water purifying agent contains a flocculation water purifying agent, a microbial water purifying agent and an enzyme preparation, wherein the flocculation water purifying agent is prepared from polyaluminum chloride, polyacrylamide, ferrous sulfate and aluminum sulfate; the microbial water purifying agent is prepared from nitrobacterium powder, paracoccus denitrificans powder, pseudomonas aeruginosa powder, candida lipolytica powder and bacillus megaterium powder; the enzyme preparation is prepared from pectinase, dehydrogenase, phosphodiesterase, oxidoreductase and xylanase. The water purifying agent and the method have the beneficial effects that by adopting the water purifying agent for treating sewage, disclosed by the invention, the water purifying effect is good, the water purifying speed is high, the safety is high, and no secondary pollution is caused; materials with adsorption capacity are used as raw materials and are assisted with microbes, so as to treat the sewage, so that the range of use is wide, and recycling can be achieved.

A comprehensive utilization method for coal ash solid waste comprises the following steps: grinding and sieving coal ash after being calcined, and soaking in a hydrochloric acid of 20-30% mass concentration to respectively obtain ferro-aluminium chlorination liquor and solid residue; adding Ca(OH)2 and Al(OH)3 in the ferro-aluminium chlorination liquor, and adjusting the basicity to 45-55%, controlling the pH value at 3.5-5.0 through the hydrochloric acid, performing water thermal polymerization at the temperature of 105-110 DEG C, and obtaining a poly ferro-aluminium chlorination liquor after concentration and drying; washing and drying the solid residue, adding Ca(OH)2 at the molar ratio of n(Ca)to n(Si) of 5:6, adding NaOH at the molar ratio of n[Ca(OH)2] to n(NaOH) of 1:(0.5-1.5), and performing thermal reaction at the temperature of 180-220 DEG C to obtain a tobermorite sewage disposal material. According to the method, a comprehensive solution that aluminium oxide and a small amount of ferric oxide and calcium oxide in the coal ash are adopted to prepare poly ferro-aluminium chlorination purifying agent, and the components of silicon dioxide are adopted to prepare the tobermorite sewage disposal material is offered, so that the purpose that the coal ash is comprehensively used to prepare the environment material with higher added value is achieved.

The present invention is the preparation process of liquid polymerized ferric sulfate by means of oxidizing catalyst. The process includes adding ferrous sulfate, water, sulfuric acid and sodium chlorate into reactor successively and stirring for 7-10 min. The present invention features the addition of powerful catalyst potassium permanganate, high concentration of the reactant components, fast reaction speed, high iron content and basicity of the product, low oxidant and water consumption, direct drying without washing, less drying time, low drying cost and high product quality.

The invention discloses a composite artificial ecological floating island and a construction method thereof. The floating island comprises a sludge ecological floating island unit or a plurality of sludge ecological floating island units and a plurality of phycomycete biomembrane vector units. The construction method comprises the following steps: sludge powder which is subjected to innocent treatment, light materials and an inorganic adhesive are taken as raw materials to prepare the sludge ecological floating island units; porous macromolecular light suspension filler is simply processed to obtain the phycomycete biomembrane vector units; the phycomycete biomembrane vector units are pretreated and fixed on the sludge ecological floating island through flexible materials; and various floating island units are flexibly connected with each other through sponge or polystyrene foam. The composite artificial ecological floating island has raw materials available, low cost, stable chemical properties, friendly environment and no secondary pollution, reasonably utilizes waste sludge of sewage disposal plants, reduces urban sludge, and achieves the aim of reutilization of waste resources; and water purifying plants can be planted to form a miniature ecological community with microorganisms, have an all-around solid purification function on polluted water bodies, and the water purifying effect is better than that of a single floating island and phycomycete biomembrane vectors.

The invention discloses a construction method of a lake water purification system. The method includes the steps of: (a) site surveying; (b) site construction; (c) precipitation zone configuration; (d) aeration zone configuration; (e) compounding zone configuration; (f) ecological planting zone configuration; (g) floating island unit establishing; and (h) regional beautification. The method provided by the invention has the advantages of simple construction, short construction period and cost saving, and after construction, the purification system has the functions of water storage, flood control, and water and air purification, can protect biodiversity, adjust microclimate and improve environmental quality, thus laying the foundation for water quality improvement of regional lake water.

The invention discloses an organic-inorganic composite flocculant for the use of processing printing and dyeing wastewater and a preparation method and a utilization method thereof. The organic-inorganic composite flocculant takes soluble aluminum salt, ferric salt and corn starch as raw materials, and takes sulfate and calcium hydroxide as reaction auxiliary agent. The specific preparation procedures are that: firstly, a 6-20 percent of starch solution is made of the corn starch, then alkali liquor produced by a mass ratio of 6-15:1 between the starch and the alkali is added slowly and with even pace into the water of 40-90 DEG C and modified for 1-8 hours; then the modified starch solution is added into the aluminum salt and ferric salt solution by a mass ratio of 0.25-1:0.02-0.5:1 between the aluminum, iron and starch, the pH value is adjusted to be 1.0-4.0, and the composite flocculant is acquired after the complex reaction under a temperature condition of 40-90 DEG C for 2-5 hours. The flocculant preparation method of the invention is simple, and is convenient in utilization, with little dosing quantity of the reagents required, high removing rate of CODCr and high decoloration rate, easily biodegradable biodegradation.