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[ Focus on Chemical Machinery and Equipment Network ] Recently, the first ecological environmental protection inspection team of the central government discovered when inspecting in Heilongjiang Province that there are obvious shortcomings in the remediation of black and odorous water bodies in Harbin, and the Hejiagou and Songpu branch channels will soon return to the black Smelly, domestic sewage is discharged directly into the Songhua River, seriously polluting the water body, "returning to black and smelly"? Water quality monitoring cannot be stopped
.
Chemical machinery and equipment network hotspots pay attention to chemical machinery and equipment.
The black and odor of water is a biochemical phenomenon.
When the water is severely polluted, the aerobic decomposition of organic matter makes the oxygen consumption rate in the water body greater than the reoxygenation rate, resulting in hypoxia in the water body, resulting in incomplete degradation of organic matter, slowing the rate, and anaerobic The biodegradation process generates odorous substances such as hydrogen sulfide, amines, ammonia, mercaptans, and at the same time forms FeS, MnS and other black substances, which make the water body black and odor.
The water body black odor is a serious water pollution phenomenon, which makes the water body completely useless.
And affect the landscape and human life and health
.
When the water is severely polluted, the aerobic decomposition of organic matter makes the oxygen consumption rate in the water body greater than the reoxygenation rate, resulting in hypoxia in the water body, resulting in incomplete degradation of organic matter, slowing the rate, and anaerobic The biodegradation process generates odorous substances such as hydrogen sulfide, amines, ammonia, mercaptans, and at the same time forms FeS, MnS and other black substances, which make the water body black and odor.
The water body black odor is a serious water pollution phenomenon, which makes the water body completely useless.
And affect the landscape and human life and health
.
Therefore, in recent years, we have been increasing the control of black and smelly water bodies.
Recently, the first ecological environmental protection inspection team of the Central Committee found that there are obvious shortcomings in the renovation of black and smelly water bodies in Harbin.
The number will turn black and smelly soon, and domestic sewage will be discharged directly into the Songhua River, seriously polluting the water body
.
Recently, the first ecological environmental protection inspection team of the Central Committee found that there are obvious shortcomings in the renovation of black and smelly water bodies in Harbin.
The number will turn black and smelly soon, and domestic sewage will be discharged directly into the Songhua River, seriously polluting the water body
.
In accordance with the relevant requirements of the National Water Pollution Prevention and Control Action Plan, the built-up areas of municipalities, provincial capitals, and cities specifically designated in the plan must basically eliminate black and odorous water bodies by the end of 2017
.
However, according to the inspection team, after the treatment of 8 black and odorous water bodies in Harbin, 6 of them rebounded this year
.
.
However, according to the inspection team, after the treatment of 8 black and odorous water bodies in Harbin, 6 of them rebounded this year
.
In detail, in early December, the inspection team saw a large amount of domestic sewage gushing out of the rainwater outlet under the Songpu Drainage Bridge in the Songpu Branch Canal of Harbin, and a lot of white foam appeared wherever the water flowed, and the smell was pungent
.
On-site sampling and monitoring results showed that the chemical oxygen demand and ammonia nitrogen concentration reached 374 mg/liter and 34 mg/liter respectively, which were 18 times and 33 times higher than the surface water class III standard
.
"Back to black smell"? Water quality monitoring cannot be stopped
.
.
On-site sampling and monitoring results showed that the chemical oxygen demand and ammonia nitrogen concentration reached 374 mg/liter and 34 mg/liter respectively, which were 18 times and 33 times higher than the surface water class III standard
.
"Back to black smell"? Water quality monitoring cannot be stopped
.
Water quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentration and changing trends of various pollutants, and evaluating the state of water quality
.
The monitoring scope is very wide, including unpolluted and polluted natural water (river, river, lake, sea and groundwater) and various industrial drainages
.
Its subdivisions include water quality monitoring equipment and water quality monitoring operation services
.
.
The monitoring scope is very wide, including unpolluted and polluted natural water (river, river, lake, sea and groundwater) and various industrial drainages
.
Its subdivisions include water quality monitoring equipment and water quality monitoring operation services
.
Water treatment and water quality testing are inseparable
.
Sewage treatment first needs to detect the types of pollutants in the sewage, the concentration of various pollutants, etc.
, and then select the separation technology based on the detection results
.
In this process, chemical methods, ion chromatography, atomic absorption spectrophotometry, electrochemical methods, ion selective electrode methods, gas chromatography, plasma emission spectroscopy (ICP-AES), etc.
are usually used
.
.
Sewage treatment first needs to detect the types of pollutants in the sewage, the concentration of various pollutants, etc.
, and then select the separation technology based on the detection results
.
In this process, chemical methods, ion chromatography, atomic absorption spectrophotometry, electrochemical methods, ion selective electrode methods, gas chromatography, plasma emission spectroscopy (ICP-AES), etc.
are usually used
.
In addition, water quality testing of reclaimed water is an important guarantee for water safety.
Therefore, the sewage treatment plant can increase investment and be equipped with water quality testing equipment with strong performance and high detection accuracy to avoid large errors in water quality testing results from affecting water treatment work.
Online water quality analysis instrument is widely used in water source protection as a common analysis instrument
.
Online water quality analysis instruments are mainly divided into monitoring type and process type.
The monitoring type is mainly used to determine whether the water quality meets the standard.
It is a pure water quality monitoring instrument ; while the process water quality online analysis and monitoring instrument can reflect the changing trend of water quality and can provide for the treatment of water pollution.
Reliable data support
.
Analytical instrument monitoring instrumentTherefore, the sewage treatment plant can increase investment and be equipped with water quality testing equipment with strong performance and high detection accuracy to avoid large errors in water quality testing results from affecting water treatment work.
Online water quality analysis instrument is widely used in water source protection as a common analysis instrument
.
Online water quality analysis instruments are mainly divided into monitoring type and process type.
The monitoring type is mainly used to determine whether the water quality meets the standard.
It is a pure water quality monitoring instrument ; while the process water quality online analysis and monitoring instrument can reflect the changing trend of water quality and can provide for the treatment of water pollution.
Reliable data support
.
Regarding this time, the black smell has returned.
Experts believe that it is necessary to speed up the construction of environmental infrastructure and actively plan for effective governance
.
Establish a full-process, dynamic monitoring mechanism, carry out 24-hour water quality monitoring, and deal with any abnormalities immediately, improve the treatment timeliness, and see the effectiveness of treatment
.
It is uneasy to see that water quality monitoring equipment is more important to control water pollution
.
Experts believe that it is necessary to speed up the construction of environmental infrastructure and actively plan for effective governance
.
Establish a full-process, dynamic monitoring mechanism, carry out 24-hour water quality monitoring, and deal with any abnormalities immediately, improve the treatment timeliness, and see the effectiveness of treatment
.
It is uneasy to see that water quality monitoring equipment is more important to control water pollution
.
Original title: "Back to Black and Stink"? Water quality monitoring cannot be stopped
