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Besides, burned wheat straw in production is the main source of air pollution. (2) water pollution.
Because of imperfect infrastructure, serious delay of sewage treatment facilities, lack of complete sewerage system and random-discharge of domestic and industrial water discharged into rivers, ponds and lakes, water in rural areas is seriously polluted.
In some countries, where there aren’t inland waterways, sewage water is disposed with infiltration or evaporation, which causes a great threat to air and groundwater.(3) solid wastes pollution.
Shortage of professional talented personnel and specialized talents make agricultural and tourism development into disordered state., which restricts the development of this district.
Ecological Environment Protection and Sustainable Development in Longji Area. (1)composing rural reconstruction and scientific tourism plan.Through investigation and research, professional technical personnel compose rural reconstruction and scientific tourism plan, and divide tourist service protective areas, rural reconstruction areas, landscape tourism areas and ecological protection areas, and such functional areas.

Unread ground water conditions d.
Therefore, many projects suffer due to inexperienced professionals [20].
Water management is an essential factor in controlling slope stability.
Safe drainage of such high runoff to the ultimate outlet (river or water bodies in the form of lake) always remains a challenging task [27].
Discharge may increase with time primarily due to three factors: 1) increase in building density and paved area, 2) increase in rainfall intensity because of impact climate change, and 3) increase of per capita water utilization because of improved life style and better water supply [27].

A professional company developed a "fully automatic system of environmental protection formula damping system," We hope these kinds systems are extended to printing field, to achieve reduction of environment pollution, stable print quality.
Different cities of the hardness of the water itself is not the same, those urban water impurities are different. 
At China's water quality deteriorates are taught job at the northern countries, we learned normally are the northern hard water but southern soft water.
To purify the water first, then add chemicals to water quality exclusive to adjust to suitable for offset printing ink and water quality printing environment.
Purify water system.

With the development of the management concepts and methods for the water quality objective based on the control unit, control unit zoning is the important means to implement the water pollution resource reduction on river basin management [3-6].Therefore, according to the survey of water ecology environment of Liaohe river basin in Liaoning province as well as the analysis of the water ecology factors, combined with the historical monitoring data, it is meaningful and significant for control unit zoning to implement the water environmental management, control the water pollution amount, protect water ecology environment and make scientific planning for water environment management.
The control unit boundary is determined by the clean water region of higher water quality objective.
Moreover, the river basin boundaries, the water ecological function area and the water function area were referenced.
There are three ways to develop the GIS software: independent development, pure development based on professional GIS software, and secondary integrated development.
Federal water pollution control act.

Reviews were conducted by expert referees to the professional and scientific standards.
This book covers the subject areas of hydrology and water resources, irrigation and water conservancy, water supply and drainage engineering, flood and drought management, hydraulic engineering construction, hydropower, hydraulics and hydraulic machinery.
Qiwei Han, China Institute of Water Resources and Hydropower Research, China; Changsha University of Science and Technology, China Academician.

Along with the high-speed development of life information, the development of the computer simulation work is rapidly, so they have appeared in the development of a number of commercial fluid calculation software, and for commercial fluid calculation software was born make eased radiator design work.Next to the experiment and numerical simulation of the flow of the two aspects of heat transfer, the whole radiator and radiator units of local heat transfer simulation calculation.And open a window to 23 degrees outside air mass flow rate of 3.65 kg/s, for example, provide the chart of the simulation calculation steps below: 1.1 Simulation of the radiator pipe flow as a whole For prototype radiator cooling water pipe thickness only 2 mm up and down, so there is no way to measure with instrument to its internal flows.SO we had to first conduct the water resistance of the radiator, and the simulation of internal flow characteristics.
To achieve the radiator cooling water pipe of the distribution of water flow, we need to build on the basis of the simulation of heat transfer units .
To simplify the processing, the prototype of the radiator think other methods of simple and convenient, the radiator shutters are scattered tropical simplified as porous media is the most commonly used of modern style.Here with the most professional fluid calculation software - CFDESIGN simulation calculation.This software has many functions will be of great help to the trial calculation, especially specialized test module of porous media simulation in this chapter.
The following figure 1-2 Figure 1-2 a Figure 1-2 b Figure 1-2 The whole simulation calculation results From the above diagram in figure 1-2 a gas lateral distribution of cooling air temperature, due to the cooling air flows through the radiator to forced convection heat transfer, this will lead to the overall rise in the temperature of the air, but will also take the cooling water pipe of heat.From figure 1-2 - b cooling water pipe temperature field distribution that the radiator cooling water pipe internal temperature distribution.This figure from the top to the bottom of tube in slowly lower water temperature, this is because the air forced convection heat transfer process, lead to reduce gradually, the water temperature of tube after heat exchange cooling air temperature rise step by step and take heat away.And the temperature of the cooling water pipe water fluctuation in the water temperature is higher than it.It has the following two reasons
: first, in the radiator pipe, the first drain pipe heat transfer effect is much better than the second row, and pipe cooling water temperature is low, the back tube instead of water temperature is high.To launch the overall water temperature rises because tube of water in water tank are mixed.Second, mainly because the prototype of the radiator and water tank is directly with engineering plastics, in the front of the engine is mainly have the effect of a fixed, so that the external air can't do with it directly forced convection heat dissipation.So it won't go to with the air heat transfer calculation, so the modeling calculation was also omitted the plastic shell.In accordance with the above figure 3-2 overall analysis, the result of the experiment and calculation results, it proves that the simulation calculation is correct.

The topics that will be presented in this Volume will be going to the encounter of a variety of scientific and engineering disciplines, such as chemical, agricultural, mechanical engineering, etc…The book is divided in 9 chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues, scientists, students, practitioners, lecturers and other interested parties to network.
This is followed by Chapter 6, by Bezerra Pessoa et al. who present a study of the osmotic dehydration process of cassava cubes (Manihot esculentaCrantz.) in ternary solutions containing water, sucrose, and sodium chloride.

Project Segments of the project Segments project Source danger Compaction readiness Reaction to water, moisture Chemicals Load transfer in Chap. gap Labor intensive design Economic demands Expert no 1 Blinding x 2 2 1 2 2 Slag 3 4 4 3 3 2 Filling 4 3 3 3 4 - Unmade ground 1 2 2 1 1 1 Slag.
Project Segments of the project Segments project Source danger Compaction readiness Reaction to water, moisture Chemicals Load transfer in Chap. gap Labor intensive design Economic demands Expert no 4 Blinding 1 2 2 2 2 4 Slag 3 3 3 4 4 2 Filling 3 4 2 3 3 3 Unmade ground 3 2 2 3 2 3 The paper analyzed subsoil where slag was used as the substrate of the components.
Additional deformations of such subsoil can be also caused by transport and compaction going at the time of construction of the building after the compacted surface hardening slag consolidation subgrade embankment weight, the effect of water (rain, underground), other chemical and climatic influences.
Project Segments of the project Segments project Source danger Compaction readiness Reaction to water, moisture Chemicals Load transfer in Chap. gap Labor intensive design Economic demands Expert no 11 Blinding 3 2 3 2 2 4 Slag 2 2 2 3 1 1 Filling 2 4 2 3 2 3 Unmade ground 3 2 2 4 2 1 Blinding.
A group of experts (75%) was formed by experienced professionals who have been working in the construction industry for several years, and the issue of foundations is part of practice.

Rural water supply project type is also gradually from a single village water supply mainly into various water supply modes coexist, large-scale water supply is increasing and the engineering construction standard is gradually improved, at the same time, with the deterioration of water quality and the improvement of water quality standards, rural water supply project process is becoming more and more complicated, all of these put forward higher requirement for the operation and management of water plant.
Taking into account rural technical personnel professional level is relatively low, should choose the control scheme with simplicity of operator and Simple steps, at the same time, should choose maintainability instrumentation to ensure normal operation of automatic control system and reduce water plant maintenance operation costs.
It is mainly to control water pump room, it can control pumps according to water level of clean-water reservoirs.
The plan can be either in a timely manner to overcome the interference by raw water parameters monitoring, and can feedback to adjust dosage by water parameters monitoring to guarantee water quality.
Fig. 2 Changes in source water and finished water turbidity The effective measures to improve the level of rural waterworks automatic control.

The results shown that strength loss rate of C30 concrete was 6.7% when the sand water content was 0.5% in the 28d and while strength loss rate was 12.0% when the sand water content was 1.0%.
Add water to dry-sand according to the sand content 0%, 0.5%, 1.0% and ensure the water equally distributed by sealing no less than 48h.
Make standard test cube and number them by sand water content and storage period.
Conclusions According to the cubic compressive test at different sand water contents, concrete can reach C30 strength although the sand water content was 0.5% and 1.0% in 28d storage.
China 2003(In Chinese)) [7] The Professional Standards Compilation Group of P.