Search results

Liquid chemical toxicity hazard identification Because of the complex physico-chemical characteristics of bulk, coupled with the spill site on the brink sea, bulk chemical leak may spread on land or into water bodies or through volatilization into the atmosphere, whereabouts and behavior are more complex.
Reactivity may react with air, water or their own; diffusion of volatile vapors in the air may form flammable or explosive gas or vapor cloud.
Bulk chemical spill and hazardous bulk itself related to how much of a risk, the number of leaks, also with the time of the accident, weather conditions, terrain, waters surrounding the accident source, population density within the sphere of influence of the environment, and so on.
This article under a bulk chemical storage and transportation professional terminal of storage and transportation of chemicals and physical-chemical properties, toxicological properties, select p-xylene, methanol as a representation of the risk impact analysis predicting the toxicity material, and simulations.
Water vapor diffusion simulation of the chemical spill [d].

The coal mining subsidence area of Shanxi locates in the area with low hill and low water table.
In Shanxi province, the reclamation process used for the subsidence area with low water table and no ponding, as well as the coal gangue area is applied.
And the construction technology related to reclamation projects such as irrigation and drainage, water, soil and water conservation, watershed management, gangue mountain extinguishment and environment protection may refer to the special requirements [4].
Ecological restoration plan is made under the conditions of comprehensively taking into account various factors, utilizing professional knowledge and coordinating the requirements of various projects and the relationship between various local departments, to reasonably determine the scale and sequence of restoration project, thus ensuring that restoration work operates step by step, feasibly and beneficially.
From the top to bottom, to form a coordinating body in agriculture, forestry, environmental protection, and water conservancy departments.

To solve the main methods of fouling water descaling and high pressure gas descaling two.
Water descaling will water spray system installed in the cabinet, the pipeline, nozzle and drain composition, water is commonly tap water, the pressure of 0.3 MPa, but this kind of descaling down time long, affects the normal use of the unit.
High pressure gas descaling system USES and water spray system similar structure, but its pipeline for high pressure pipeline, high pressure air using compressed air or nitrogen, pressure is 0.8-1.5 MPa, the operation is simple, descaling rapidly, and improve the operation efficiency of the unit.
Through the professional software for automatic dynamic balance calculation results.

Architects understand their professional duty to lead to the “greening” of construction, so they began to focus more on sustainable and green building design for their clients.
The air-water heat pump system as well as the passive house building envelope reduced impact by approximately 20%.
A condensing gas boiler is used for domestic central space heating and hot water preparation.
Heat pump is used as the source of space heating and hot water preparation, which is stored in 300 l insulated hot water tank.
This is due to the fact that heat pump is used as the source of space heating and hot water preparation in house 2.

Convergence accuracy of the instrument measured value is not only related with the professional skills of measurement, but also affected by the hook attached to the foreign bodies and the temperature inside of the tunnel.
The heavy rainfall brought a lot of rain water seeping into the soft rock and making loose rock constantly reinforced, resulting in surface subsidence with a large variation.
The water of the tunnel arch angle on both sides was still not clear, the danger was looming.
The mechanical strength of the surrounding rock of tunnel arch angle is weakened due to both sides of the excavated plane soaked in water for half a month.
The tunnel drainage is too lag that a great amount of water can be seen everywhere in the hole.

This gas is highly toxic where in the presence of water it will form corrosive acid.
Therefore, these absorbents are highly soluble in water.
The required amount of CuCl2.2H2O (Merck) was weighed and dissolved in distilled water.
The solvent was then evaporated using a water bath at 80 °C followed by overnight drying in the oven at 100 °C.
Gulf Professional Publishing, Oxford, UK, 2011

The corresponding database can commonly be designed through professional software such as SQL server, Oracle, or others developed by one’s own.
Automatic data collecting platform consists of kinds of intelligent monitoring units, which can gauge information like stress, strain, displacement, temperature, humidity, deformation, underground water, seismic wave.
This system was examined and used in deep pit engineering of HengLong square in Jinan city, underground water table, pit deformation and supporting structure stresses were measured and the data facilitated the pit excavation and design optimization.
After studied on the duration curves of the slope top lateral displacement, settlement, underground water table and deep lateral displacement 20days before failed, L.
Feng[7] concluded that the monitoring data of displacement and underground water table of a deep pit changed suddenly at a considerable magnitude when reaching critical failure state, and informative monitoring is of value and importance to indicate an early alarm in the engineering of deep pit excavations.

Earthships home is built with recycled low carbon materials, and is installed with solar temperature controlling system, optical electricity system, water collecting system, solar water heating system, and sewage disposal system.
Water catchment systems take advantage of Nicaragua’s high quantity of rainfall by keeping it in large cisterns, while water reclamation systems process used water and transport it to a green house filled with fruit trees and vegetable gardens.
In that case, Fig. 7 shows that people can participate in the construction, even build the houses all by themselves, with no professional knowledge.

Influence of fan oil According to the cold, air conditioning system can divide the medium of the whole water system, air system, all gas, water system, cooling system, etc.
In general occasion, stylist will choose the air and water system.
In addition, cooling water board of condensed water together, which become the hotbed which varieties in bacteria?
Environment and professional medicine, 2004, 21(6): 493-495 [6] Berglund L,Cain W S.

Unlike other assessment systems, all related parties in building industry such as manufacturers, environment organizations, constructors, facility companies, government, R&D institutes, professional organizations and colleges participated in the development of the LEED environment-friendly building rating system.
Water resource efficiency 2.
Water cycle management 4.
Water resources Environmental load reduction performances of LR building 6.
In terms of environmental load which can be measured through the LCA, there are diverse environment categories such as destruction of ozone layer, human toxicity and water pollution as well as global warming.