How to deal with noise pollution? How is noise pollution treated?

Noise pollution is a serious form of pollution, and the treatment methods are more complicated. You can choose between double glazing or soundproofing paints.

1 The first thing to do is to avoid noise as much as possible. Without affecting work, study and entertainment, the volume and switching time of household appliances and other sound-generating appliances should be strictly controlled. Especially for the use of high-frequency stereo sound, the volume must be controlled below 70 decibels (subject to no deafening sensation).

Car drivers should not honk their horns at will, and do not often go to noisy commercial areas and song halls to "receive" noise, etc., so as to reduce the harm of human noise as much as possible.

2 Pay attention to prevent noise pollution from household appliances. When purchasing household appliances, it is necessary to choose the most advanced and low-noise ones. Try not to put household appliances in one room, and it is best not to put the refrigerator in the bedroom; Try to avoid the simultaneous use of various household appliances; Once a household appliance fails, it should be eliminated in time, because the noise generated by a household appliance working with illness is much louder than that of a normal machine.

3 The "Silent Villa" has sprung up abroad and is very popular, but due to national conditions, China is not yet able to follow suit, so it can only create an atmosphere of silence in our own homes.

The first is to install insulating glass windows, three-layer glass windows, vacuum glass windows, sound insulation seals, etc. This can reduce the external noise by half, especially in office buildings and homes facing the street, and the effect is more ideal.

The second is to install steel door sound insulation. Steel doors also help with sound insulation, such as the galvanized steel door, which is designed to isolate the air in the middle layer, which makes it difficult to transmit sound both indoors and outdoors. In addition, the steel door is fitted with a rubber edge, which does not make noise when it comes into contact with the door.

the third is to use more fabric decoration and soft decoration;

Fourth, pay attention to the closure of different functional rooms in the room.

4. In the case of indoor noise pollution, indoor noise detection can be carried out, and then corresponding measures can be taken according to the pollution source, if the noise pollution is caused by the outside world, it can be solved by contacting the relevant departments.

5. Family members and neighbors should live in harmony with each other, do not quarrel or make noise, appropriately control the entertainment time, and create a quiet, warm and civilized social and family environment for everyone, especially children.

6. It is best to use decoration materials with sound reduction and noise insulation, such as diatom mud. Because of its natural porosity, its three-dimensional porous structure effectively isolates noise and has a good indoor noise pollution elimination effect.

Noise processing methods can be divided into three types: controlling noise sources, blocking noise propagation, and protecting recipients. The above three means are mainly achieved through sound elimination, sound insulation, vibration reduction, sound absorption, etc.

1) Control the noise source: Before this is implemented, the noise source needs to be analyzed so that appropriate measures can be taken against it. If the fan noise is generally aerodynamic noise, a muffler can be installed at the air inlet and outlet to control the noise source, so as to reduce the noise; If the ball mill is mainly the mechanical noise generated by the impact during operation, the noise source can be controlled by damping and wrapping the cylinder.

2) Noise propagation: The method of noise propagation can basically use sound insulation cover, sound insulation screen cover, etc. The sound insulation cover is made of sound insulation and sound absorption materials to enclose high-intensity noise sources in a separate space to control noise propagation and reduce the scope of influence; Sound insulation screen cover refers to the reasonable setting of sound barriers at the boundary of the factory within the affected range of passing noise, and the noise transmission is blocked by reducing sound reflection, so as to achieve the purpose of not affecting the surrounding residents.

3) Protection of the recipient: such as textile factories, machinery factories such as factories, noise sources are many and messy, noise sources can not be blocked, noise treatment is difficult, this kind of plant in addition to the whole workshop to set up sound-absorbing ceilings, pilasters, soundproof doors and windows, but also for the noise recipients (employees) to configure earplugs.

In order to reduce the impact of noise on the surrounding environment and human beings, the main noise control method isolates or protects the noise source, the noise propagation path and the receiver, and blocks or absorbs the noise energy. For example, the noise source (motor) is equipped with shock-proof springs or rubber to absorb vibrations, or to cover the entire motor. The propagation path is generally to use acoustic walls to block the propagation of noise.

And the protection for the receiver is generally soundproof windows, earplugs, etc.

Beijing Guotai Liangyou Engineering Technology Co., Ltd. is a professional enterprise specializing in acoustic sound insulation design, acoustic sound insulation decoration and noise control engineering

Effective measures for noise control

1. For some factories and enterprises, there are many equipment, if it is not possible to carry out source noise treatment for each equipment, then the equipment workshop can be soundproofed and decorated, and the soundproof materials can be installed on the walls, doors and windows, ceilings, floors, etc. of the workshop, and the noise reduction requirements of the noise equipment can be achieved.

2. The air noise in some factories, such as fan noise, will be solved by using mufflers, which are mainly aimed at all kinds of air noise, which can effectively reduce the exhaust inlet noise of fans and other equipment, and better achieve the purpose of noise treatment.

3. According to the type of noise equipment in the factory, determine how to reduce the noise of the noise equipment, for many factory equipment, the sound insulation cover, silent room and other means are used to wrap the equipment, effectively isolate the noise transmission from the source, and effectively play the role of noise treatment.

4. In the noise treatment, the noise at the plant boundary is generally soundproofed by using a soundproof barrier or a soundproof wall, and the sound barrier and soundproof wall will be designed and produced according to the main noise type and noise volume of the plant, and a certain height, width and thickness should be guaranteed to ensure that the noise barrier is greatly reduced. Sound barriers are generally made of metal and have the function of sound insulation and sound attenuation.

There are several ways to deal with noise pollution.

1.Door-to-door communication. If the neighbor's child is too noisy, you can come to the door to communicate.

If you can't communicate by yourself, you can find a property to communicate, and the parents of the children will find a way to solve it or buy soundproof yoga mats or pave stalls to reduce noise as much as possible. For example, my children are more naughty and like to bounce around. Neighbors also came to communicate.

So I asked the child to be as quiet as possible, and I also bought shockproof mats to reduce the noise as much as possible.

2.Noise devices. You can install a soundproof glass in your home, or bring an anti-noise earplug to reduce noise in general.

After all, the upstairs and downstairs are so close to each other, there is a bit of noise, and some noise is unavoidable, especially for families with children. Therefore, it is also important to install some soundproofing devices. For example, I used to live in a dormitory.

A lot of people are noisy, and there is no way to sleep with earplugs, and they fall asleep quickly.

3.Uproot. If you feel that the place where you live has seriously affected your life, this noise can't be changed.

Then you might as well choose to participate. It is possible to move to the countryside or to a quiet place. That way you can avoid noise.

Living in a lively place, it is inevitable that there will be noise. So it's a good place to move. It's not comfortable to live in a place that is too noisy.

Stay in a quiet place, at least comfortably.

In short, the children in the community can come to the door to communicate, and if the communication is ineffective, they can find the property. Or install some anti-noise devices, or participate, can effectively reduce the impact of noise on you. As for which method is good, it depends on your own situation.

1) Sound absorption and noise reduction Sound absorption and noise reduction is a method of controlling the intensity of noise in the propagation pathway. The sound-absorbing effect of an object is universal, and the sound-absorbing effect is related not only to the sound-absorbing material, but also to the sound-absorbing structure chosen. This technique is mainly used in interior spaces.

2) Noise Reduction Muffler is a device that can not only pass through the air flow of the dead bush oak, but also effectively reduce the noise. Mufflers are often used to reduce the noise transmitted at the inlet and outlet of various aerodynamic equipment or along pipes. For example, mufflers are widely used in noise control of internal combustion engines, ventilators, blowers, compressors, gas turbines, and various high-pressure, high-gas emissions.

Different mufflers have different noise reduction principles. Commonly used anechoic technologies include resistive anechoic, resistant anechoic, lossy anechoic, diffusion anechoic, etc.

3) Sound insulation and noise reduction: Enclose the machinery and equipment that produce noise in a small space, so that it is isolated from the surrounding environment, so as to reduce the impact of noise on the environment, this practice is called sound insulation. Noise barriers and sound insulation covers are the two main designs Zheng Li, and other sound insulation structures are:

Acoustic chambers, acoustic walls, acoustic curtains, acoustic doors, etc.

The basic ways are: reduce the noise vibration source, reduce the noise reflectivity of the sound source, use the absorption, reflection, interference and other characteristics of sound to control the radiation of the sound source, take protective measures against the noise that has been generated, and formulate noise standards and strengthen the relevant management work. Noise propagation generally has three phases, namely:

Noise source - propagation route - receiver.

The specific engineering and technical methods of noise control mainly include:

Sound source control. The first is to improve the structure of operating machinery and equipment and means of transportation, improve the processing accuracy and assembly quality of components, adopt reasonable operation methods, etc., and reduce the noise emission power of the sound source; The second is to use sound absorption, reflection, interference and other technologies to control noise radiation.

Control of transmission routes. One is to keep the noise source away from the place where it needs to be quiet; the second is to change the direction of sound source emission and control the direction of noise propagation; the third is to establish a noise barrier; The fourth is to apply sound-absorbing materials and sound-absorbing structures to convert the noise energy in propagation into thermal energy.

Receiver protection. One is to wear ear protectors; the second is to reduce the exposure time in the noisy environment; Third, according to the hearing test results, the person with significant hearing loss will be removed from the noise environment.

The main measures in terms of management are:

In urban construction, formulate and implement reasonable urban noise prevention and control plans.

Establish and implement relevant standards and regulations for noise control.

Strengthen publicity, education and administrative management. Noise pollution is different from pollution from other harmful substances in that it has no cumulative effect in the environment. The selection of control measures must be determined by comprehensive analysis based on relevant factors such as noise control costs, noise tolerance standards and labor production efficiency.

The impact and harm of noise on people are directly related to the intensity of noise. In buildings, the measures taken to reduce noise are mainly sound insulation and sound absorption. Sound insulation is the isolation of sound sources to prevent noise from being transmitted indoors.

Planting trees on both sides of the road can insulate the houses on both sides. In the building, the sandwich structure made by separating the multi-layer dense material with porous material will also have a good sound insulation effect. In order to eliminate noise, the commonly used sound-absorbing materials are mainly porous sound-absorbing materials, such as glass wool, mineral wool, expanded perlite, perforated sound-absorbing panels, etc.

The sound absorption performance of a material is determined by its roughness, flexibility, porosity and other factors. In addition, the lawn and trees around the building are also good sound-absorbing materials, so we plant flowers and trees, which not only beautifies the environment in which we live and learn, but also prevents noise pollution to the environment. Chinese psychology believes that in addition to considering human factors, the control of noise environment must also take into account economic and technical feasibility.

Adequate noise control must consider the entire system composed of the noise source, the sound transmission pathway, and the recipient.

1. General principles of environmental noise pollution prevention and control countermeasures:

Control the impact of environmental noise from the three elements of sound;

Prioritize urban planning to avoid the impact of environmental noise pollution;

Pay attention to the protection of environmentally sensitive groups, reflecting the "people-oriented";

a combination of management and technical means to control environmental noise pollution;

The principles of pertinence, specificity, economic reasonableness, and technical feasibility.

2. Basic methods for preventing and controlling environmental noise pollution:

Scientifically coordinate urban and rural construction planning, clarify land use functional zoning, rationally arrange urban functional areas and construction layouts, and prevent environmental noise pollution;

Noise reduction from the sound source;

Noise reduction by means of propagation (the most common means of preventing and controlling environmental noise pollution);

Noise reduction measures are taken for the objects to be protected.

For mechanical noise caused by vibration, friction, impact, etc., vibration reduction and sound insulation measures are generally adopted. The sound insulation effect of general materials can reach 15-40db

For aerodynamic noise caused by the vibration of the air column, the measures of installing mufflers are generally adopted. 10-25db noise reduction can be achieved, and the sound attenuation effect of the design can be improved if the ventilation volume is reduced.

For the electromagnetic noise generated by some electrical equipment, the equipment is generally installed away from the crowd as much as possible, one is to ensure electromagnetic safety, and the other is to use distance attenuation to reduce noise.

The technical and engineering measures for the prevention and control of environmental noise pollution taken for environmental protection objectives are mainly shielding measures based on sound insulation and sound absorption, so that the protection targets are protected from noise. Generally, the artificially designed sound barrier can achieve a maximum noise reduction effect of 5-12db. The noise reduction effect of the fully enclosed sound barrier can reach 20-30db

3. Industrial noise prevention and control

It is mainly a fixed source of noise for industrial equipment. In the environmental impact assessment document submitted for approval of such projects, the site selection results, general layout of the general plan, noise reduction measures of sound sources, sound barriers to be built and necessary noise prevention and control measures for sensitive buildings shall be given.