How to deal with sludge and how to cure sludge?

There are three methods of sludge treatment: sanitary landfill, direct land use, and incineration.

Sanitary landfill is a simple, easy, low-cost disposal method, and the sludge does not require a high degree of dewatering, making it highly adaptable. However, there are also some problems with landfills, especially the formation of landfill leachate and gases. Leachate is a heavily contaminated liquid that can contaminate the groundwater environment if a landfill is not properly situated or operated.

The gas produced by the landfill is mainly methane.

If appropriate measures are not taken, it will cause ** and burning.

The main purpose of sludge treatment is to reduce the amount of sludge and make it stable, facilitating the transportation and final disposal of sludge. On the one hand, the moisture content is reduced to make it change to a solid state to achieve the purpose of reduction; On the other hand, it stabilizes the organic matter so that it is not easy to deteriorate and avoid secondary pollution to the environment. The method of sludge treatment often depends on the moisture content of the sludge and the final disposal method.

1) Sludge thickening and dewatering.

The function of sludge thickening is to remove a part of the water in the sludge by gravity or mechanical means to reduce the volume; The function of sludge dewatering is to separate part of the interstitial water in the sludge by mechanical means, further reducing the volume. The moisture content of thickened sludge can generally reach 94% and 96%. The commonly used sludge mechanical dewatering methods include belt filter press dewatering, plate and frame filter press dewatering, centrifugal dewatering, and the moisture content of dewatered sludge can generally reach less than 80%.

2) Anaerobic digestion.

Sludge anaerobic digestion refers to the process of converting organic matter in sludge into biogas through microbial action under anaerobic conditions, so as to stabilize the mineralization of organic matter in sludge. Anaerobic digestion can reduce the content of organic matter in sludge, reduce the volume of sludge, and improve the dewatering performance of sludge.

Sludge disposal refers to the final absorption method of treated sludge, which is disposed of in the natural environment (ground, ground, water) or reused, which can achieve long-term stability and has no adverse impact on the ecological environment. At present, the main sludge disposal methods in China include sanitary landfill, incineration, land use, building materials utilization, etc.

Black silt, sallow silt, black silt, thick silt, dirty silt, sticky silt, strange silt, green silt, disgusting silt.

Silt, pronounced yū ní, is a Chinese word that is interpreted as the bottom of a river, lake, pond and pond with a pin of regret and sediment.

An adjective is a class of speech, mainly used to describe or modify a noun or pronoun, to indicate the nature, state, characteristics or attributes of a person or thing, and is often used as a definite, or as a predicate or complement.

Grammatical concepts:

Grammar is the organization of language, and anyone who uses a language, regardless of whether he has learned grammar or not, must conform to grammar. In addition, summarizing the rules of grammar itself can also deepen our understanding of the language, so that we can use the language really proficiently. Grammar is a non-negligible part of the standard English language that cannot be ignored.

As far as adjectives are concerned, they are also an integral part of English grammar.

Evaporation method, quicklime mixing method, concrete mixing method.

The evaporation method is to evaporate the excess water, and the quicklime mixing method is the method of absorbing water through quicklime.

The concrete mixing method is to add cement for mixing, and the purpose of reducing moisture is achieved through the heat of cement hydration.

Sludge fixed-line treatment method can be treated with a filter press! It is also possible to dry the method.

Is this an engineering need? Yes, it can be drained and consolidated, or it can be solidified with cement. Of course, the best thing to do is to replace it.

If you have a special sludge solidification machine, you can buy one.

Sludge sludge solidification treatment construction plan? A great way to clean up the silt.

Summary. The self-made method of silt can choose the common pastoral soil in life, dig up an appropriate amount of it, sterilize and disinfect the soil, you can choose to expose it to the sun, or soak the soil after diluting it with potassium permanganate and other solutions, so as not to carry germs and insect eggs, affecting the growth of plants. After that, put the disinfected garden soil into a pot and add water to moisten the soil.

Prepare a wooden stick, stir the moist soil, and add water continuously during the period to ensure that under the stirring of the stick, the soil has completely become a moist and thin mud state, and then choose to use the culture soil or base fertilizer to carry out the next step of silt self-control. Apply an appropriate amount of base fertilizer or culture soil to the treated thin mud to increase the fertility of the soil, then add water to the soil to stir to help it become a muddy water mixed state, and finally place the pot in a cool place to stand for a few days.

This question is up to me, it takes a little time to type, so please be patient.

The self-made method of silt can choose the common pastoral soil in life, dig it up an appropriate amount, sterilize and disinfect the soil, you can choose to expose it to the sun, or soak the soil after diluting it with potassium permanganate and other solutions, so as not to carry germs and insect eggs and affect the growth of plants. After that, put the sterilized garden soil into a flower pot, and add water to make the soil moist. Prepare a wooden stick, stir the moist soil, and add water continuously during the period to ensure that under the stirring of the stick, the soil has completely become a moist and thin mud state, and then choose to use the culture soil or base fertilizer to carry out the next step of silt self-control.

Apply an appropriate amount of base fertilizer or culture soil to the treated thin mud to increase the fertility of the soil, then add water to the soil to stir to help it become a muddy water mixed state, and finally place the pot in a cool place to stand for a few days.

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Silt is a cohesive soil deposited in a still water or slow flowing water environment and formed by biochemical action, with a natural water content greater than the liquid limit and a natural porosity ratio greater than or equal to 15; Cohesive soil or silt soil with a natural water content greater than the liquid limit and a natural porosity ratio of less than 15 but greater than or equal to 10 is called silty soil.

Silt is a kind of soft soil with a natural water content greater than the flow limit and a greater porosity ratio. It is a modern sediment formed under the condition of microbial involvement in the environment of slow water flow in bays, lakes or bays. It is rich in organic matter, often grayish-black, with low mechanical strength and strong compressibility.

If there is silt in the foundation, it is easy to cause the building to subside.

Silt is a cohesive soil that is deposited in a still water or slow flowing water environment, formed by biochemical action, and the natural water content is greater than the liquid limit, and the natural porosity ratio is greater than or equal to. Formation of modern sediments with the participation of microorganisms, rich in organic matter, usually grayish-black in color; Low mechanical strength and strong compressibility. Its seismic performance is poor.

Under the strong action, it is easy to cause the subsidence of the building foundation.

Soil solidification has a long history, as early as thousands of years ago, human beings knew how to use lime and volcanic ash to solidify the soil to meet the needs of production activities. So, what about sludge solidification? Let's take a look at it!

Sludge solidification treatment refers to a technology that improves the physical and mechanical properties of silt soil by adding a certain amount of external admixture to the sludge to meet the needs of different projects, which belongs to the category of soil solidification treatment. Sludge solidification treatment has been widely used in practice due to its advantages of simple process, high construction efficiency and reasonable construction. After the solidified material is added to the sludge, its physical properties will change, because the specific gravity of the silt and the solidified material is different, some of the specific gravity of the solidified material is greater than the silt, and some are the opposite, after the two are mixed, the specific gravity of the silt is changed; The addition of cured materials often consumes part of the water and organic matter to form new substances, thereby changing the moisture content, liquid-plastic limit and rheology of the sludge.

Strength silt solidified soil is used as engineering filler, and strength is its most important index, and the strength research at this stage mainly focuses on parameters such as unconfined compressive strength and shear strength. Due to the high moisture content and rich organic matter of silt, the research on the influencing factors of the strength of silt solidified soil mainly focuses on the initial moisture content, organic matter, and the amount of solidified materials. The initial moisture content is larger, and the strength of the silt solidified soil is reduced. The organic matter is large, which reduces the strength of the solidified soil and even makes the solidified material fail; The amount of cured material is also the decisive factor, the amount of cured material is insufficient, the solidified soil has no strength, the amount is too large, and the excess part loses its effect.

The deformation of deformed silt solidified soil includes deformation caused by force deformation and environmental changes. The mechanical deformation includes the failure strain of the unconfined compressive strength, the axial strain of the solidified soil under different confining pressures in the triaxial test, and the tensile deformation of the components. The deformation caused by environmental changes includes volumetric deformation at different ages and under different conditions.

As the bearing foundation or masonry material of various projects, the durability of silt solidified soil is a factor that must be considered. Because it is a hydrophilic cementitious material, it is greatly affected by water, so the influence of water on durability should be considered, including impermeability, frost resistance, erosion resistance, corrosion resistance under special conditions, etc. Silt-solidified soils tend to have better impermeability and poor frost resistance.

Among the factors that affect the mechanical properties of silt solidified soil, it often has an impact on durability, and the mechanical properties are good and the durability is also good.