The HY integrated paper mill wastewater treatment equipment Henan Central Environmental Technology Co., Ltd. HY-integrated paper mill wastewater treatment equipment Description: Henan, Central Environmental Technology Co., Ltd. R & D and production HY-PAW-type integrated paper mill wastewater treatment equipment adopts the international advanced biological treatment processes higher removal efficiency of the process, to the color effect, with technical performance is stable and reliable, good effect, investment, small footprint, easy maintenance, etc., at the same time I also can according to customer requirements while supporting water reuse device. The HY integrated paper mill wastewater treatment equipment advantages 1, integrated paper mill wastewater treatment equipment corrosion of carbon steel or stainless steel components, the field splices combination. Light weight, easy to transport, easy to install; 2, glass, steel, carbon steel, stainless steel and anti-corrosion structure, corrosion resistant, anti-aging and other fine features, the service life of 60 years or more; 3, placed below the surface, integrated papermaking sewage above the surface of the processing equipment can be used as green or other land, no housing and heating, thermal insulation. Maximize the realization of the system integration, reduce floor space; 4, no pollution, no noise, no smell, reduce secondary pollution; 5, not subject to limits on the amount of sewage, flexible, single use, but also multiple Joint use. 6, the entire sewage equipment processing system with the PLC automatic electrical control system and equipment failure alarm system, safe and reliable, generally do not need special management, usually just timely papermaking sewage treatment equipment maintenance and repair, management fees. 7, the biggest feature is the sewage treatment works arranged landscape. Henan ring source of environmental integration papermaking sewage treatment equipment buried not only good water effects and surface greening rate of 90%, if the use of the distinctive emblem of the cold water-loving trees or lawn, forming streams, fountains, ponds, fish ponds integration of water treatment landscape of polluted springs, governance both sewage and beautify the environment. Papermaking sewage Source: paper industry wastewater is a large amount of water, high color, suspended solids content, high concentration of organic matter and complex component of refractory organic wastewater. Papermaking wastewater 3 Source: pulping liquor, gray water, paper machine white: pulp fiber plant materials separated, form a slurry, and then bleached; papermaking slurry dilution, forming , pressing, drying, manufacture of paper. These two processes emit large amounts of wastewater. Pulp wastewater generated the most polluted. Pulp washing wastewater effluent is dark brown, known as Blackwater, Blackwater high concentration of pollutants, BOD up to 5 to 40 L, containing a large number of fibers, inorganic salts and pigments. Generated in the bleaching process of the washing water quantity in the middle of the most polluting substances have a higher concentration of lignin, cellulose and resinate more difficult biodegradable component, and the dark color. Wastewater discharged by a papermaking machine, known as white water, which contains a large number of fibers and filler material and plastic material added in the production process. Papermaking sewage Features: paper effluent quality characteristics: SS, COD are higher. COD by non-soluble COD and soluble COD composed of two parts, usually non-soluble COD COD accounted for most of the composition of the total, accounting for more than 60% lower soluble COD. While the solubility COD and difficult to biodegradable. Although there is no generation of black liquor, but still there is a high concentration of pollutants, poor biodegradability characteristics. When the SS sewage is removed, the vast majority of non-soluble COD was removed at the same time. Therefore, to solve the main problem of waste paper papermaking wastewater treatment is to remove the SS and COD papermaking wastewater treatment methods: 1. Flotation flotation or sedimentation or precipitation by adding coagulant, can remove most of the SS simultaneous removal of most of the non-soluble COD and soluble COD and BOD. The typical process is as follows: wastewater → Screen → sump → flotation or sedimentation → emissions DAF and sedimentation are physico-chemical treatment, the treatment effect and selection of equipment, process parameters, coagulant, the COD The removal is generally higher than that the Pulping of water COD removal rate, usually can reach 70% to 85%. Tons of paper waste water discharge> 150m3, lower concentration of small and medium-sized waste paper and paper enterprises, processing by flotation or sedimentation, water quality indicators at or close to the national emission standards. 2. Physical and chemical and biological treatment combined tons of paper waste water emissions, wastewater with high COD and medium-sized paper paper-making enterprises, expect to meet the national emission standards by the single-stage flotation or sedimentation materialized the difficulty, because the soluble COD, BOD mainly required by biochemical methods to effectively remove. In general, the use of physical and chemical and biochemical approach. The typical process is as follows: wastewater → Screen → adjust → sedimentation or flotation → A / O or contact oxidation → secondary settling tank → emissions A / O (anoxic - aerobic) treatment process, selected by the anoxic microbial role only organic adsorption, adsorption of organic matter in micro-organisms in the aerobic stage oxidation and decomposition. Section A short residence time, approximately in the 40 to 60min. Maturing of the middle of wastewater treatment technology through research and practical application, such as: flotation - biochemical process, anaerobic fluidized bed - aerobic treatment process, stabilization pond treatment process, hydrolysis acidification-SBR treatment process are has been widely used, and achieved a good result. Whitewater because of its low concentration of pollutants, the focus of governance is to achieve water reuse, usually used in the process are: DAF - filter or membrane treatment processes. Deinking wastewater treatment process is based on the broad-brush treatment of waste paper pulping process needs. The main pollutants of waste paper pulp manufacturing waste water ink, clay, staple fiber, experimental two-stage flotation - filtration process, the success of the treatment can be used in the production process, and achieved good environmental and economic benefits . Process the following methods: (1) deinking wastewater: adjustment → wastewater the Pool → mixed reaction cell → a flotation mixed reaction cell → → secondary flotation → valveless filter discharge standards (2) Whitewater waste water: white water → sump → flotation tank → → clear back to the pool, to the production the slurry pool (3) black liquor: black liquor addition to silica reaction tank → coagulation reaction tank → mixture separation equipment → clean liquid tank → → discharged into the middle wastewater treatment station (4) middle: → sank sewage → grit chamber the the pool → oxidation pond (dosing) → oxidation pond → secondary sedimentation tank water →