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New sewage treatment 1t type
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Product Description: There are three kinds of modern treatment methods: 1. Physical method; 2. Chemical method and physical chemical method; 3. Biological method; the treatment degree can be divided into three levels: 1. Filtration of suspended solids and particles; 2. Decomposition of colloidal and organic dissolved substances; 3. Deeper removal of residues. although the properties and conditions of various kinds of sewage are different, corresponding methods can be adopted, but the chemical physical method is closer to the users with small amount of sewage discharge: firstly, the colloid is decomposed rapidly by chemical method, and then the flocs are dispersed in the water body, and then the adsorption physical changes between the flocs form particles and precipitate to separate the water body from the pollutants.

Sewage properties and treatment methods:

? According to the technological process sequence and related technical requirements, guide the practical process to help users understand and use.

Sewage, also known as waste water, is dirty waste water, but the degree of pollution is different. Among them, the nature and concentration of pollutants are very random, and there is no standard to refer to. Only by getting experience through practice can we master the characteristics and variation law of sewage.

There are three types of modern treatment methods one Physical method, two Chemical and physicochemical methods, three The treatment degree can be divided into three levels one Filtration of suspended solids and particles, two It decomposes colloids and organic solutes, three Deeper removal of residues.

Although the properties and conditions of various kinds of sewage are different, corresponding methods can be adopted, but the chemical physical method is closer to the users with small amount of sewage discharge: firstly, the colloid is decomposed rapidly by chemical method, and then the flocs are dispersed in the water body, and then the adsorption physical changes between the flocs form particles and precipitate to separate the water body from the pollutants.

Adjustment:

By the various components of pollutants, solid content, turbidity, color PH The wastewater with high concentration is lack of necessary water as space. Even if more chemicals are added, it will not be able to be treated. On the contrary, the substance saturation will be increased. Therefore, the test should be carried out before treatment, and the high concentration and low concentration wastewater should be adjusted to make it conform to the conditions of treatment mechanism. In this way, the effect is good and the reagent consumption is low.

example one : a large sewage pool is provided to collect the initial concentrated sewage and the later weak sewage, and the water content is adjusted naturally.

example two Only a small sewage pool can be repeatedly used to save water, and even a small part of the residual material (fluid) is discarded in the water, which causes the treatment difficult; in addition, the ions of the pollutants are uneven in the upper, middle and lower parts of the water body due to the specific gravity of the ions, which can be adjusted by stages in the treatment container to meet the treatment conditions.

?1 PH Value: after testing with test paper, according to the pH value, add a little lime liquid, cement and industrial alkali as additives to adjust, PH value 7.2-8.5 (weakly alkaline).

two Concentration: test the sewage, mix the sewage, and then press the reagent two hundred About G / Trial operation of ton ratio, 2-5 Observe the effect in minutes, if it can be treated with just or a little medicament, it can be continued; if the effect can not be achieved by double dosing, it is proved that the concentration of lack of water is very high, so the dosing should be stopped and the low concentration sewage should be adjusted until it can be treated. At the same time, the data are recorded for future reference.

The test process was as follows 1T and 2T The model is tested directly with the processor, 3T Type A was replaced by a small bucket, and the volume was filled fifty %The sewage is stirred and added with medicament 2-5 In order to prevent the agglomerated small particles from being dispersed by long-time stirring, resulting in the colloid being stabilized again in water, the stirring should be stopped and the initial sedimentation should be carried out so that the flocculated particles can be gradually cultivated and firm, 5-10 Minutes later, the stirring is started again, and the coarse and large particles form a cloud like adsorption bridge. If the net is swept and absorbed, small particles are scattered in the water, and the water is suddenly clear and transparent, 2-3 The secondary interval stirring treatment is more sufficient, and then the sludge and water are separated by standing sedimentation.

Appropriate concentration to dosage 160-200 gram / Ton basis.

For the first time, I don't know that regulation is the key to understand the sewage treatment technology. I think that it can be solved only by adding more and more chemicals. In fact, other conditions and conditions are not adjusted in place.

The edge of the sewage pool should be raised and fenced, and the ceiling should be set up to prevent rainwater from entering. The pool mouth should be kept open. For the sediment at the bottom of the pool and the retention area at the four corners, the circulation and renewal should be promoted to prevent variation and odor. The sewage inlet and sewage pump should be equipped with filtering devices.

Flocculation:

Sewage treatment PH After the value and concentration are adjusted, start the mixing to transfer the sewage, and put the chemicals evenly. Refer to the process procedures of each machine type for details.

If the floc is small and the water is muddy, it is proved that the dosage is too small. Add the agent in time and prolong the mixing time slightly until the treatment is finished.

Precipitation:

The precipitation process is also very important. Do not cut down the treatment results in a hurry for success Let the precipitated pollutants better leave the water body and settle fifteen Minutes or more.

If it is not easy to settle or the speed is too slow, it is effective to add less cement and increase the specific gravity of flocculation particles.

Emissions:

Integrated wastewater discharge standard GB8978-1996??1998.1.1 after ???

sewage Refers to the water discharged in production and living activities.

Major pollutant emission allowance: ?????????????? mg/L

standard

COD

chroma

SS

BOD5

pH

Class I

one hundred

fifty

seventy

????20

?

6-9

Class II

one hundred and fifty

eighty

one hundred and fifty

????30

Class III

five hundred

four hundred

???300



Note: class We will focus on protecting water sources and scenic spots, class Cities, densely populated areas, class Urban and rural areas.

???? Take water sample: use clean transparent bottle about 250ml And label the sampling unit, time, sewage type, etc., and send them to the environmental protection monitoring department for analysis.

???? It should be noted that the fresh water should not be discharged directly, but should be discharged into the clear water tank for observation, so as to stabilize the water quality and prevent accidents from being collected again; if necessary, add biochemical and oxidation facilities for follow-up treatment, so as to meet the discharge standard.

? Reuse:

Although the treated water quality meets the requirements of reuse, it can not only be used as water for ingredients, but also can be used for washing utensils, environmental sanitation, and other aspects, such as watering flowers and fish, which not only saves energy and emission reduction, but also saves treatment costs.

Reclaimed water reuse rate

??? General water use properties

No requirement eighty %, ??? After filtration or advanced treatment sixty

?

The repeated reuse of clean (medium) water is called Fatal Frame Emissions, not equal to no emissions, just less emissions. Due to the lack of sterilization and disinfection, the water that has been reused for many times can not get comprehensive circulation when stored in the water tank for a long time. All kinds of bacteria have breeding space. The water quality changes and stinks, and even affects the whole system. Therefore, the whole system must be replaced and cleaned regularly to keep the whole system in a fresh and circulating state, especially in summer with high temperature or before it is ready to be used for several days Drain all the water. (add environmental protection bactericide to edible grade according to proportion eighty-four Disinfectant)

Filtration:

Part of the sludge should be temporarily retained in the processor to play a role of reflux, which is conducive to the next treatment and thorough digestion. However, attention should be paid to promoting circulation and replacement to prevent stratification. If the sludge is not operated for a long time, the sludge should be cleaned and washed.

Due to the special function of the medicament and the combination of the colloidal components in the pollutants, the sludge particles have strong coagulability and are easy to filter and dry. The ordinary bag filter can be adopted, and the operation is very simple. In order to prevent the leakage of small particles, the filter cloth density is selected at 160-180 In order to prevent the fabric filter bag from cracking, it is necessary to pay attention to the heavy sludge with water and the leakage bracket outside the bag.

If the sludge filtration work is not enough, the traditional multi tank alternative sand filtration is more convenient and economical: the bottom of the tank is paved first ten Centimeter thick stone will drain, and two layers of filter cloth will be laid on the stone , Pay attention to no gap around, and finally pave again ten Cm thick filter sand, do not close to the filter cloth each time , Prevent sand from being washed away. ?3T It is suggested to add a screw stacking machine to the model)

Sludge treatment:

Strictly control the treatment of sludge to prevent re pollution. It is a required link in the process of sewage treatment. The sludge with small amount of sewage discharge is very few, so it is impossible to complete the final treatment by itself. The sludge is naturally dried into solid state, packed in woven bags as solid waste, and transported with qualified departments, so as to realize landfill or incineration treatment.

Parameters:

name

1T type

frame

1110×900×880mm

workbench

910×450×860mm

Take the ladder

930×400mm

processor

980×730×1100mm

filter

610×610×500mm

bilge tank

1710×740×650mm

Electric control panel

500×175×490mm

Vertical motor

550W/220Vmm

Submersible pump

750W/220Vmm

Daily output

ten ton

Applicable objects

It is an independent and complete treatment system with small amount of sewage.

technological process:

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Tel.: + 86-577-65026898 / 6698 / 6598; fax + 86-577-65026798; address: building 2-1, block B, Yunjiang standard light industrial plant, Nanbin street, Ruian City
Wenzhou Yizhang Machinery Co., Ltd. is a diversified enterprise integrating scientific research, design, production, sales and service, specializing in the production of screen printing equipment
Automatic disc multi-color screen printing machine, semi-automatic multi-color printing machine, automatic multi-color printing machine, manual printing machine, curved screen printing machine, balloon screen printing machine and its auxiliary equipment.


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