有机物

Undernatural ventilation and closed landfilling conditions, the removal efficiency of total dissolved organics is respectively 92% and 87% when hydraulic load is 40 L/(m3·d), and thatof total dissolved refractory organics is respectively 34% and 21% when the hydraulic load is 50 L/(m3·d).

当水力负荷为40 L/(m3·d)时，在自然通风和封闭填埋条件下总溶解性有机物的去除率分别为92%和87%；当水力负荷为50 L/(m3·d)时，总溶解性难降解有机物的去除率分别为34%和21%。

The fresh dewater digested sludge of municipal wastewater treatment plant was suited for vaccinal sludge at the startup of anaerobic reactor and the concentration should not be less 10mg/L; the COD of feed wastewater should be lower than 5000mg/L, and VOL was 20 percent of total VOL; the alkalinity of effluent should be more than 3000mg/L; on the condition of the COD removed 80% can the VOL be elevated.

反应器启动时接种污泥可以选用城市污水处理厂新鲜的脱水消化污泥，浓度不低于10mg/L；进水有机物浓度不高于5000mg/L，容积负荷为满负荷的20％；出水碱度要高于3000mg/L，温度稳定；在有机物的降解率达到80％后再提高负荷。

Some of these chemicals are thought to have come from a planet-forming disk of gas and dust that swirled around our young sun. Meteorites carrying the chemicals might have crash-landed on Earth.

部分有机物被认为来自围绕我们原始太阳的原始行星盘中的气体和尘埃，落在地球的陨石群带来另外一些有机物。

Air sparging is widely used for remediating groundwater contamination of solvents or gasoline fuels. Air is injected into the saturated zone in the plume area through sparging well. Injected air contacts the contaminated groundwater and removes volatile organic compounds by volatization.

气提法应用在地下水及土壤污染整治的原理是将空气由注气井打入受污染区域的饱和含水层，注入地下水层的空气与非水相的挥发性有机污染物接触，会将污染地下水层的挥发性有机物挥发出来，并往上流入非饱和层中，再由抽气井抽出非饱和层之气体，将污染的挥发性有机物回收到地表进行处理。

The main reasons were that the algae and organism in the water decreased the ability of removing pollutants by coagulations, the algae which grown again in the open sedimentation tank weakened the removal effect of algae by coagulation; because of the accumulation of algae and algae toxin in the filtration tank, the concentration of algae toxin in the effluent increased; by the function of fluid chlorine, the algae and organisms after the filtration will release microalgae toxin and produce a lot of byproduct such as microalgae toxin, sobomyl and so on, meanwhile, the chlorination produce considerable halide and halo-acetic acid and other disinfection byproduct.

主要表现在藻类和溶解性有机物的存在降低了混凝去除污染物的能力；藻类在露天平流沉淀池中再生长，抵消了混凝除藻效果；藻类和藻毒素在滤池中积累，导致滤后藻毒素升高；穿透滤池的藻类和有机物在液氯作用下，释放微囊藻毒素、土臭素和二甲基异冰片等胞内物质，同时生成数量可观的卤代烃和卤乙酸等消毒副产物。

The experimental results show that most of the diesel particulates are wad-shaped and chain-shaped and composed mainly of organic compounds or carbon particles covered with organic compounds. The peak value of the diesel particle size distribution is about 40 nm. In the exhaust gas, the PM concentration was 32. 6mg/m~3～143.6mg/m~3, NO_x 208 × 10~(-6)～ 568×10~(-6), SO_2 18 × 10~(-6) and HC about 16 × 10~(-6)..

实验结果表明，颗粒物大多呈絮状及链状形态，其构成主要为有机物或为有机物所覆盖的碳微粒，粒径分布峰值约为40nm；柴油机废气中颗粒物浓度为32.6mg／m~3～143.6mg／m~3，NO_x浓度为208×10~(-6)～568×10~(-6)，SO_2和HC化合物浓度分别为18×10~(-6)和16×10~(-6)。

Biorefractory organic pollutants are very harmful to environment and biological treatment is now an important way to eliminate BOPs despite their resistance to biodegradation.

难降解有机物对环境危害巨大，生物技术是去除这类物质的重要途径。近年来国内外从不同角度研究了强化难降解有机物生物处理效率的方法。

SPMD technology has advantage in monitoring the variations of trace organic pollutants and their more important metabolites, which might be Environmental Endocrine Disrupters.

SPMD技术应用于饮用水处理流程的重要意义在于：天然大分子有机物和人工合成有机物可能在加氯消毒过程中转化成为更具环境意义的有毒有机污染物，由于转化产物种类复杂、浓度更低、易变化，XAD树脂萃取等常规技术难以开展目标物及其转化产物的跟踪监测。

As the raise of ammonia-N concentration,survival rate and daily growth of unexuviated larvae decreased gradually, while the metamorphosis rate and daily growth of exuviated larvae increased gradually firstly and then decreased.

氨氮是虾蟹类的排泄物，也是虾蟹类残饵、粪便以及其它动植物尸体等含氮有机物分解的终产物，硫化氢则是由于含硫有机物在缺氧条件下，由厌氧细菌分解形成。

After 3d of gastric gavages,peripheral blood was taken from experimental mice to extract the lym phocytes.Then single cell gel electrophoresis test Was used to detect the inhibition of DNA.DNA damage in mice.

材料与方法：固相萃取水中有机物，用不同浓度维生素C水溶液(50、100、200 ms／ks)与有机物以不同方式处理(同时灌胃、维生素C预处理、维生素C后处理)，分别给小鼠灌胃3 d后，取外周血淋巴细胞进行单细胞凝胶电泳实验，检测细胞DNA的损伤情况。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。