Dyeing Wastewater Treatment Equipment, is discharged from sewage pollution (waste) water, because it contains a high concentration of pollutants or total, reach emission standards do not meet environmental requirements or capacity requirements, When reducing the water quality of the environment and functional goals, it is necessary to strengthen the process through artificial place. Generally divided into urban centralized sewage treatment plants and the various sources of decentralized sewage treatment plants, treated or discharged into water bodies city pipes. Sometimes you need to recycle construction waste recycling resources, the need to improve water quality after processing wastewater reuse or recycling of sewage treatment plant. Treatment plant process flow is commonly used in a variety of special treatment or a combination of optimization methods, including physical, chemical and biological methods, requiring advanced technology, reasonable economy, most of the cost. The current building must implement the principles and policies of the State of design. Therefore, from the depth of treatment, sewage treatment plants may be primary, secondary, tertiary or advanced treatment. Sewage treatment plant design includes a variety of different processing structures, outbuildings, plane and elevation pipelines and road design, landscaping, plumbing integrated, factory drainage, sludge disposal and treatment systems management automation designed to ensure wastewater treatment Factory achieve stable treatment effect, meet the design requirements, easy operation and management, advanced technology, investment requirements and other operating costs province.
Trial operation of sewage treatment works, unlike the general building water works or municipal drainage works to commissioning, start-up and commissioning, including the former complex biochemical reaction process, the process is slow, time-consuming, subject to environmental conditions and water quality and quantity influence is strong, while the latter only need through the water system and equipment will be able to operate normally.
Commissioning of sewage treatment works and engineering acceptance as is the sewage treatment project the most important aspects. You can further test the quality of the test run by civil works, equipment and installation, and is able to ensure the normal operation of energy-efficient basis, to further achieve environmental benefits sewage treatment projects, social and economic benefits.
Trial operation of sewage treatment works, not only to verify the quality, more important is to verify operation of the project to achieve the treatment effect design.
Content trial operation of sewage treatment works
(1) Inspection by commissioning quality construction, equipment and installation works, the establishment of archival material related equipment, s estions for related machinery, equipment and instrumentation design is reasonable, running the operating precautions.
(2) for some general or special equipment with a load operation, and test its capabilities. Such as water pumps to enhance flow and head, the air damper blower, pressure, temperature, noise and vibration, aeration equipment oxygenation capacity or oxygen utilization, scraping (row) mud mechanical operation stability, the protective effect of the device, scratch (row) mud effects.
Requirements trial operation of sewage treatment works
(1) single treatment tank test run, the effect of treatment required to achieve the design, especially the use of biological treatment works, and to cultivate (domesticated) the microbial sludge, and on the basis of the treatment effect reached on the run to find the best process parameters.
(2) On the basis of a single test run facilities, joint operations and acceptance of the whole project. Able to ensure that the sewage treatment discharge standards.
Municipal wastewater treatment plant operation and management, operation management, like other industries, is the whole process of sewage treatment plan, organize, control and coordination of work, collectively, are enterprises of various management activities (such as: administration, technical management, equipment management , part of the "tertiary" management), and a variety of business activities, the most important part of the business.
Municipal wastewater treatment plant operation and management, refers to the acceptance of raw sewage purification treatment discharge "standard" management of the whole process of sewage.
The basic requirements for the operation and management of wastewater treatment
Urban sewage treatment plant operation and management process basic requirements are:

(1) demand production should first meet the basic requirements of urban wastewater treatment plant and water environment for running, ensure dry handling capacity of the processed sewage standards.
(2) economic production at the lowest cost deal with the waste, making it "standard."
(3) requires a new quality of civilized production operations management, advanced technology and civilized manner, improve the safety of the production run.
Water Quality Management
Sewage treatment plant (station) and water quality management is the core purpose of the work is to ensure "compliance" an important factor. Water quality management system should include: water quality management system at all levels of responsibility, "three" (referring to environmental monitoring department, corporation and sewage station) inspection system, water quality discharge standards and water quality testing system, water quality control and clean production systems.
Sewage treatment process at three levels: a deal: by mechanical processing, such as the grille, sedimentation or flotation, to remove sewage contained stones, sand and fat, grease, etc. Secondary treatment: biological treatment of wastewater contaminants are degraded under the action of microorganisms and converted into sludge. Tertiary treatment: depth treatment of sewage, which includes the removal of nutrients and by chlorination, ultraviolet radiation or ozone technology for wastewater disinfection. May vary according to the processing objectives and water quality, and some wastewater treatment process does not contain all of the above procedure.
The main parameters

More commonly used chemical method, the long-term process to add BAF. Mixing, flocculation, sedimentation 3 step merged within a single structure, the main parameters are as follows.
Mixing time: 64 s, dosage PAC 86 mg / L, PAM 0.5 mg / L; flocculation time: 14 min; efficient sedimentation basin: surface load 17 m3 / (m2 · h), the residence time of 50 min, the sludge reflux ratio 4%. The amount of sludge produced 197 t / d, 97% moisture content, the amount of sludge 6930 m3 / d.
Efficient sedimentation tank

Long-term increase in group 2. Each group of treated water to about 420 000 m3 / d. Each group has a separate reaction unit, by
Mixing zone, flocculation zone, pushing the flow reaction zone, settling zone and sludge thickening zone. Single-cell length 25.9 m, width 17 m, depth 8.3 m, volume 2 407 m2, the residence time of 64 min. Located in the upper part of the precipitation area ramp, single pool ramp area 170 m2, coagulation tank single tank volume 140 m3, size 6 m × 3.2 m × 7.3 m.
Mixer mixing zone configuration Ф500 18 sets, flocculation flocculation zone configuration Ф3600 mixer 18 sets, concentrated zone configuration Ф17 m concentrated scraper 18 sets of 18 with 6 sludge pump equipment, return sludge pump 18 with 6 devices. In addition, the set dosing systems, including coagulant resolve, dilution ratio and dosing, with PLC control.
A treatment

Machinery (a) processing section includes grill, grit chamber, primary sedimentation tank and other structures, to remove coarse particles and suspended solids for the purpose of treatment is to achieve the principle of solid-liquid separation by physical law, the separation of contaminants from wastewater , which is commonly used in wastewater treatment. Machinery (a) processing is necessary for all the sewage treatment process engineering (although sometimes some process eliminates the primary settling tank), a typical primary treatment of urban sewage removal BOD5 and SS were 25% and 50%. Type in biological nutrient removal wastewater treatment plant, aerated grit chamber is generally not recommended in order to avoid rapid degradation of organic matter removal; raw sewage water quality characteristics under unfavorable circumstances nitrogen and phosphorus removal, primary sedimentation settings and set or not ways need to be carefully analyzed and considered on the subsequent process of water quality characteristics, in order to ensure and improve water quality, such as nitrogen and phosphorus in addition to the follow-up process.
Secondary treatment

Belong to two biological wastewater treatment process to remove suspended solids and can not sink biodegradable dissolved organic matter as the main purpose, the process constitutes varied, can be divided into activated sludge, AB method, A / O method, A2 / O many ways to law, SBR, oxidation ditch, stabilization ponds law, land treatment method. Most recently the city sewage treatment plant are activated sludge. Principle of biological treatment by biological action, especially the action of microorganisms, to complete the synthesis of organic matter decomposition and organisms, to convert organic contaminants to harmless gaseous products (CO2), liquid product (water) and organic-rich The solid product (also known as bio-sludge microbial communities); excess biological sludge sedimentation tank through the solid-liquid separation in the settling tank, removed from the sewage purification after the.
Tertiary treatment

Tertiary treatment is treatment of the water depth, is the second after secondary treatment of wastewater treatment processes, is the highest sewage treatment measures. Now our sewage treatment plants are not many practical applications. It will go through secondary treatment water denitrification, dephosphorization treatment with activated carbon adsorption or reverse osmosis to remove residual contaminants such as water and disinfected with ozone or chlorine to kill bacteria and viruses, and then the treated water into the waterways, as flush toilets, spray street, watering the green belt, industrial water, fire and other sources.
Thus, the role of the sewage treatment process only by biodegradation and transformation of the role of solid-liquid separation, at the same time to purify the sewage pollutants into the sludge enrichment, including a processing section produced primary sludge, secondary treatment section resulting chemical sludge activated sludge and tertiary treatment produced. Since these sludge contains a lot of organic matter and pathogens, and can easily stink of corruption, it is likely to cause secondary pollution, eliminate pollution of the task has not been completed. Must go through the sludge volume reduction, reduction and stabilization safe disposal wells for proper disposal. Sludge treatment and disposal of success has important implications for the wastewater treatment plant, must pay attention to. If not treated sludge, the sludge will have to deal with the effluent discharged after purification effect of wastewater treatment plant will also be offset. Therefore, in the actual application process, the sewage sludge treatment process is quite critical.
Deodorization process

Malodorous gases Process Introduction
Physical methods which include dilution, adsorption method; chemical methods include absorption, combustion method; Biological methods include biological agents, biological filtration, biological deodorization tower fill and biological washing method, plant extracts atomized spray leaching method.

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