How to desilt the river and is it legal to desilt the river?

1 4 Step by Step Reading.

1. On-site treatment: do not dredge the sediment, directly cover or drain the sediment underwater, and dehydrate, solidify or physically leach after overlying the water body.

2. Resource utilization: sludge is an engineering waste, and in accordance with the principles of reduction, harmlessness and resource utilization of solid waste treatment, the sludge is heated and sintered to transform the sludge into building materials.

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3. Passivation treatment: according to the different active states of the heavy metals in the sludge in different environments, the corresponding chemical materials are added to convert the unstable heavy metals in the sludge into stable heavy metals, reduce the activity of heavy metals and reduce pollution.

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4. Sludge disposal in the yard: from the initial blowing and filling stage, the sludge is quickly settling and consolidated, and combined with the surface treatment technology, the sludge yard is used for turnover or rapid recultivation of the silt dump.

The dredging mainly adopts the construction method of manual cleaning and mechanical unloading.

Construction planning. It is planned to construct the river first, check the severity of siltation at the bottom of the river, and arrange construction at the same time after the project quantity is re-examined and identified.

Construction procedures. Fill the cofferdam, pump the --- sewage suction pump to the tanker to transport and unload the --- manually clean the muck (including garbage, stones) - lift to the temporary stacking point on the shore --- transport the muck truck to the unloading point - the river bottom dredging measurement and acceptance pass - enter the next section of construction.

Construction method. 1. a cofferdam.

The construction length of each section is initially planned to be about 200 300 meters, and the cofferdam is stacked with bagged sand, and the woven cloth (color stripe cloth) is spread on the surface of the water to prevent seepage and covered with bagged sand, and the bagged sand must be arranged densely and neatly when stacked. The cofferdam crest is wide by meters, and the slope on both sides is 1:, and the height of the cofferdam should be higher than the normal high water level by meters.

2. Pumping. The 120 sump pump is used to pump water day and night.

3. Clean up. After the water in the cofferdam is drained, the surface sludge is directly sucked onto the tanker with a sewage suction pump and transported to the unloading point for stacking; The lower muck (including garbage, stones) adopts manual cleaning, and then hoisted to the temporary stacking point on the shore to be transported to the unloading point by means of the muck truck to be stacked, and the silt and muck at the bottom of the river are dug directly with a backhoe excavator in the place allowed by the local work site, and the muck truck is transported to the unloading point. After the bottom of each section of the river is cleaned, it must be surveyed and accepted by the owner and the supervisor before entering the construction of the next section.

4. Environmental protection and city appearance and hygiene.

Do a good job of daily cleaning during construction, and dispose of sludge according to the designated place to not pollute the environment of the mud dump, and take effective measures to prevent the phenomenon of "dripping, sprinkling and leaking" in the process of transporting muck.

The dredging of the river generally has a dredging boat, which is specially designed to clean the silt in the river, and he catches the silt in the river with special claws, so as to effectively clean the river.

Illegal. Illegal sand mining activities carried out in the name of dredging will be seriously investigated and dealt with by the water conservancy department. However, if the siltation of the river is really serious and affects the flow of floodwater, an application for dredging can be submitted according to the procedure, and the water conservancy department will carry out unified planning according to the actual situation and formulate a scientific dredging plan.

[Legal basis].

Article 225 of the Criminal Law is the crime of illegal business operation.

Whoever violates state provisions by committing any of the following illegal business activities, disrupting market order, and the circumstances are serious, is to be sentenced to up to five years imprisonment or short-term detention, and/or a fine of between 1 and 5 times the amount of unlawful gains; where the circumstances are especially serious, a sentence of five or more years imprisonment is to be given, and a concurrent fine of between 1 and 5 times the amount of unlawful gains or confiscation of property is to be given

1) Engaging in monopoly or monopoly goods or other restricted items as provided for by laws and administrative regulations without permission;

2) Buying and selling import and export licenses, import and export certificates of origin, and other business licenses or approval documents provided for by laws and administrative regulations;

3) Illegally operating **, **, or insurance business without the approval of the relevant competent state departments, or illegally engaging in fund payment and settlement business;

4) Other illegal business activities that seriously disrupt market order.

Legal analysis: Reservoir dredging needs to be written to the local people's water administrative department at or above the county level to write an application for dredging for approval.

Legal basis: Zhaotan "Water Law of the People's Republic of China" Article 25 Local people at all levels shall strengthen the leadership of irrigation, drainage, soil and water conservation, and promote the development of agricultural production; In areas prone to salinity and contamination, measures should be taken to control and lower groundwater levels.

The dredging of the river channel has made the river deeper and wider through treatment, the river water has become clearer, and the production conditions and living environment of the masses have been significantly improved, so as to achieve the goal of "clear water, smooth Pintan River, green banks and beautiful scenery".

River dredging and dredging projects are highly valued, and any undertaking must change with the trend of the times and the development of the times, and the same is true for river dredging and dredging.

In the actual dredging and dredging process, the relevant departments should adopt advanced technology, make full use of the current loss to change the generation of scientific and technological means, the traditional river dredging and dredging technology combined with modern information technology, keep pace with the times, and let the traditional technology glow with the brilliance of the times.

At the same time, the river dredging project is a costly project that requires huge financial support to operate, so the river dredging needs to be backed by strong sponsors.

Modern river dredging is a project for the benefit of the people, which can bring economic and ecological benefits to our country, and continuously improve environmental problems such as soil erosion, and improve people's quality of life. People's living standards have gone up, which in turn can promote the advancement of river dredging projects and achieve a good circulation effect, which shows that the construction of river dredging and dredging projects is urgent.

River dredging and silt treatment method:

1. Yard treatment and on-site treatment; The yard treatment method refers to the silt dredging out and transporting it to the designated silt dump for treatment.

2. Resource utilization and conventional disposal; Sludge is essentially engineering waste, and in accordance with the principles of reduction, harmlessness and resource utilization of solid waste treatment, the resource utilization of sludge should be considered as much as possible.

3. Yard sludge disposal technology; A series of treatment measures are used to quickly promote sedimentation and consolidation, and combined with surface treatment technology, the sludge dump can be used for turnover or rapid recultivation of the silt dump.

The significance of river siltation in dredging

In order to restore the normal function of the river and promote the rapid and sustainable development of the economy and society, the river dredging and dredging project is carried out. The river channel has become deeper and wider through treatment, the river water has become clearer, and the production conditions and living environment of the masses have been significantly improved, so as to achieve the goal of "clear water, smooth river, green bank and beautiful scenery".

Hello dear! The river reaches the following dredging standards, i.e., the depth of silt at the bottom of the riverbed and the flow direction of the riverbed (the elevation of the bottom of the upstream riverbed and the elevation of the bottom of the downstream riverbed). When clearing the mud, we must remove the rotten smell (black mud) silt at the bottom of the river, leaving no dead ends, no islands, no big pits, and the bottom of the riverbed is basically flat after digging.

The slopes on both sides of the embankment should be repaired consistently. When the environmental protection dredging project treats the sludge, it generally adopts the method of piling up and rolling in the yard, and after the sand is discharged, it is first stored in the yard, and then the land is restored or treated and utilized. However, there is no more standardized or recognized method for how to carry out the dredging project of small and medium-sized rivers and rural rivers, what kind of dredging machinery and technology to use, and how to deal with the dredging mud.