Pact water treatment process

Practice of diatomite water treatment process

Diatomite municipal sewage technology

Application of Flap Filter in Water Treatment Process

Application of Flap Filter in Water Treatment Process

Basic knowledge of the latest water treatment process

1.1 Basic knowledge of wastewater treatment 1.1.1 Treatment methods of wastewater The main treatment methods of wastewater are mainly divided into: physical method, physical chemical method, biological method, combined method 1.1.2 Pretreatment of wastewater Pretreatment of wastewater is a common pretreatment method aimed at removing large particle pollutants in wastewater and oil substances in suspended solids in wastewater

Design of Biological Rotating Disc Water Treatment Process

The sewage treatment capacity of the sewage treatment plant is 1000 m3/d, and the effluent quality is required to meet the Class I B standard in the Discharge Standard of Pollutants for Urban Sewage Treatment Plants (GB 18918-2002). Combined with the water quality characteristics of urban sewage, through the comparison of different sewage treatment processes, this design finally selects the biological rotary table process as the central treatment of the treatment plant

Comparison of coagulation effects of different water treatment processes

Taking the Yellow River water in Ningdong area of Ningxia as the research object, this paper investigated the influence of three water treatment processes on coagulation efficiency under different coagulation conditions (conventional coagulation sedimentation tank, micro vortex coagulation sedimentation tank, backwash water reflux sedimentation tank)

Discussion on Algae Removal Efficiency of Combined Water Treatment Process

This paper introduces the limit value of cyanobacteria cell density in drinking water source proposed by Fudan University based on the limit value of algal toxin I in drinking water for Lin, and derives that the limit value of total algal cell density in factory water should be a protection number, including

Safety technical disclosure of water treatment process structure construction

The site shall be well ventilated. In case of poor ventilation, air supply measures shall be taken. Before operation in closed and narrow places, the air quality of the operating environment shall be tested as required, and dynamic monitoring shall be carried out during operation to confirm safety.

Discussion on water treatment process transformation scheme in Shanghai

The water quality problem has been a major concern of the people of the city in the past decade. After the first phase of water diversion from the upper reaches of the Huangpu River was realized in 1987, the water quality of the water supply has improved significantly, and the beneficiary population has reached 400000. Recently, the Standing Committee of Shanghai Municipal People's Congress decided to further implement the second phase of the water diversion project in the upper reaches of the Huangpu River, and the water quality will be further improved in the future. This article attempts to

Construction safety technical disclosure of water treatment process structure

(1) Sufficient lighting shall be provided in dark and night. (2) The operation platform shall be erected when working at heights and on slopes, and the safety ladder or ramp must be used when going up and down. (3) When there is water in the pool, drainage and drowning prevention measures should be taken in summer, and ice breaking measures should also be taken in winter. (4) When the scaffold is erected on the slope, the bottom of the rod standing on the slope must be firmly fixed

Safety technical disclosure design of water treatment process structure construction

General requirements, installation of prefabricated components, cast-in-place concrete and masonry construction

Technical disclosure on construction safety of water treatment process structure.doc

Cass sewage treatment process operation

The operation method, common problems and solutions of cass sewage treatment process are introduced. The aeration period of each operation cycle of CASS process is 120 minutes, the sedimentation period is 50 minutes, and the decanting period is 70 minutes. The sewage is treated with activated sludge. After the sewage stays in the aeration tank for a period of time, most of the organic matter in the sewage is adsorbed by the microorganisms in the aeration tank, oxidized and decomposed into no machine

Municipal sewage treatment process design

Municipal sewage treatment process design, including process comparison and selection, determination of process flow, design calculation of main structures, plane layout and economic budget

On the commissioning of papermaking wastewater treatment process

XX Paper Factory in Xi'an, Shaanxi Province uses waste paper to make paper. The sewage discharged by the factory has high SS content, low BOD5/COD ratio and is not easy to be biochemical. Shallow air flotation/contact oxidation was used to treat waste paper papermaking wastewater (treatment scale: 4000m3/d). After one and a half months of microbial cultivation, acclimation, contact film formation, the commissioning effluent quality reached GB3544-

Process Design of Coconut Wastewater Treatment

According to the processing and production characteristics of the enterprise, the pollutants in the wastewater are mainly high organic matter, high chroma and suspended solids,

Domestic sewage treatment process in a community

Domestic sewage treatment process of a community, with drawings, including horizontal sedimentation tank profile and vertical sedimentation tank profile.

Process design of brewery wastewater treatment

The design of beer wastewater treatment process adopts UASB+CASS process, with a daily treatment flow of 3000 tons

Treatment process of cassava starch wastewater

The most advanced technologies, such as oxygen two-phase anaerobic (internal circulation) - internal circulation aerobic biological fluidization, were introduced to treat cassava starch wastewater with CODcr up to 12500 mg/L. The project investment was saved by 2.2 times - 6.6 times.

Brewery wastewater treatment process and analysis

China is a large beer producing country, and beer wastewater has become a major source of high organic pollution. Therefore, it is very important to treat beer wastewater and discharge it after reaching the standard. This paper introduces five more mature beer wastewater treatment process (flow) schemes, briefly describes their characteristics, advantages and disadvantages, and preliminarily analyzes five process schemes.

Commissioning of brewery wastewater treatment process

The sewage treatment project of a beer industry company in Henan Province was commissioned in March 2004. After three months of commissioning and trial operation, the effluent quality of the existing wastewater treated by the WWTP meets the secondary standard in Table 4 of the Integrated Wastewater Discharge Standard (GB8978-1996) and the requirements of local total amount control. During commissioning, the operator shall be responsible for

Summary of paint wastewater treatment process

Summary of various treatment processes for paint wastewater

Description of coking wastewater treatment process

Coking wastewater mainly comes from the following sources: water entrained by coal, reaction generated water, steam and fresh water added for distillation and washing of coking products, wastewater condensed or separated after contacting with gas and product water, including residual ammonia water composed of gas collector spray separation liquid and primary cooling liquid; Ammonia rich water for ammonia washing in ammonia water process. These two parts of wastewater are discharged after ammonia evaporation (recovery). In sulfur ammonia process

Treatment process of automobile coating wastewater

In view of the fact that the automobile coating wastewater contains resin, surfactant, heavy metal ions, oil, pigments and other pollutants, especially the complex composition, high concentration and poor biodegradability of the electrophoresis wastewater and paint spraying wastewater, the coating wastewater is treated by mass separation, coagulation sedimentation, coagulation flotation, sand filtration and other processes, and good results are achieved: CODCr removal

Introduction to common sewage treatment processes

At present, domestic urban sewage treatment mainly adopts A/O, A2/O, SBR and oxidation ditch technologies. Because these treatment processes generally have problems such as large investment, high treatment cost, high management requirements, and large sludge production. BIOLAK process is an efficient and low consumption wastewater treatment technology. It adopts low load activated sludge process and creates various special micro

Progress in treatment of printing and dyeing wastewater

The daily discharge of printing and dyeing wastewater in China is (300~400) × 104t, which is one of the largest polluters in various industries. Printing and dyeing wastewater is mainly composed of desizing wastewater, scouring wastewater, bleaching wastewater, mercerizing wastewater, dyeing wastewater and printing wastewater. It has the following characteristics: large amount of water, high content of organic pollutants, large changes in alkalinity and pH value, and large changes in water quality; Biochemical performance

Introduction to slaughterhouse wastewater treatment process

Slaughter wastewater has the characteristics of high concentration of organic matter, good biodegradability, generally reddish brown, foul smell, high concentration of suspended solids in influent, and large changes in water quality and quantity. Therefore, anaerobic+aerobic biochemical treatment process is the most economical and effective method for slaughter wastewater.

Water plant design and typical water supply treatment process

This document is the water plant design and typical water supply treatment process, including: this data is the water plant design and typical water supply treatment process, pdf format, 28 pages. Main contents: design steps, requirements and design principles; Site selection of water plant; Selection of process flow and main structures of water treatment plant; Plane and elevation layout of the water plant; Production process supervision of water plant

Introduction to urban sewage treatment process

Use natural sedimentation to remove sand particles or other heavy inorganic particles in the water, so as to reduce the wear of water pumps and pipelines, prevent the blockage of pipelines of subsequent treatment structures, reduce the volume of sludge treatment structures, increase the organic content of sludge, and increase the value of sludge as fertilizer

Discussion on leather wastewater treatment process

The production process, quantity and quality characteristics of waste water in wet and dry operation of leather were introduced; According to the different characteristics of wastewater in leather production, the pretreatment process of wastewater in domestic leather factories was discussed; The advantages and disadvantages of various biochemical processes used in comprehensive wastewater treatment are listed and discussed; In view of the characteristics of leather wastewater that is difficult to treat, the understanding is proposed

Comparison of hospital sewage treatment processes

Hospital sewage is similar to general domestic sewage, but has its prominent characteristics: 1. The source is complex: sewage mainly comes from different departments of the hospital, including consulting rooms, laboratories, wards, laundry rooms, X-ray printing, isotope therapy and diagnosis, operating rooms and domestic sewage. 2. High ammonia nitrogen content: generally, the hospital not only receives and treats patients, but also accepts

Introduction to CASS sewage treatment process

CASS process is evolved from the intermittent activated sludge process (SBR process). It is equipped with a biological selection area in the front of the CASS reaction tank, and a lifting automatic decanting device in the rear. Its working process can be divided into three stages: aeration, sedimentation and drainage, which are carried out periodically. The sewage continuously enters the pre reaction area and enters the main reaction area through the bottom of the partition wall,

Introduction to common sewage treatment processes

Modern sewage treatment technology can be divided into primary, secondary and tertiary treatment according to the degree of treatment.

Common sewage treatment processes

A/O is the abbreviation of Anoxic/Oxic. Its advantage is that it not only degrades organic pollutants, but also has certain nitrogen and phosphorus removal functions. It uses anaerobic hydrolysis technology as the pretreatment of activated sludge, so A/O process is an improved activated sludge process.

Vehicle washing sewage treatment process scheme

The sewage involved in this project is mainly produced in the daily car washing process of 4S stores. The sewage must be treated to meet the standard before it can be discharged into the urban pipe network or reused. In order to strictly abide by the relevant environmental laws and regulations and protect the environment, the principle of "three simultaneities" is followed in economic construction and environmental protection. Our company is conducting preliminary research and has many successful practical experiences in car washing wastewater treatment

Sewage Treatment Process Summary (1). ppt

Application of whole membrane water treatment process in pharmaceutical industry

The whole membrane water treatment process is to combine the three membrane separation technologies of "ultrafiltration reverse osmosis EDI" to achieve efficient pollutant removal.

Water treatment process design calculation software and equipment selection parameters

Parameter design of process equipment involved in sewage treatment, selection of pipes, pumps and valves, and selection and methods of relevant RO membrane and MBR membrane.

Removal of endocrine disruptors by conventional water treatment process

The determination of the production scale of Shanghai Yangshupu Water Plant, Ningbo Water System and Tianjin Water Company with conventional water treatment processes to purify and remove endocrine disruptors and reduce endocrine disruptors activity is introduced. Conventional water treatment processes have certain removal effects on 11 of 13 endocrine disruptors

Study on enhanced water treatment process of slightly polluted Xiangjiang River raw water

The pilot test of Xiangjiang River micro polluted raw water and low temperature and low turbidity raw water was carried out by using enhanced coagulation process and the combined process of enhanced coagulation and activated carbon. The results show that for the treatment of slightly polluted Xiangjiang River raw water, polyaluminum chloride coagulation is the best

Effect of strengthening conventional water treatment process on reducing mutagenicity rate of water

Based on the experimental data of some researchers, this paper demonstrates the positive correlation between the reduction of TOC, Euv, CODMn and the reduction of mutagenicity rate MR of water by strengthening the conventional water treatment process, and suggests that TOC, Euv, CODMn should be included in the conventional water quality detection work in the production of water plants to guide production.