Li Na Sun

Adsorption of Phosphate in Aqueous Solution with Steel Slag

The steel slag was used as adsorbent for the adsorption of Phosphate. the isothermal adsorption test studies adsorption of the steel slag on phosphorus and ammonia nitrogen. The results showed that that the steel slag have very strong adsorption capacity on phosphorus. Langmuir adsorption equation can better describe adsorption of steel slag on phosphorus, the max adsorption quantity of steel slag on phosphorus is 9495.916 mg·kg-1, adsorption intensity is 0.0132.

Current Situation and the Harm of Soil Heavy Metal Pollution and Food Safety

In this paper, induction and summary of the current situation and the harm of heavy metal pollution in soils and influence on food safety has been made. It introduced the soil heavy metal into the food, and put forward specific measures to reduce the impact of heavy metal on food security, in order to further attention to food safety and soil heavy metal pollution prevention and control technology and policy.

Investigation of the Antibiotics in Animal Manure and Agricultural Soils in Shenyang and Surrounding Cities

In this study, oxytetracycline, chlortetracycline and roxithromycin examples, general family of farmers livestock and poultry breeding point scale livestock and poultry breeding plant in Shenyang, Tieling and Fushun representative soil samples and the application of livestock manure are sampled and analyzed, in order to understand the situation of the antibiotic residues in manure in these regions and application of antibiotic residues in soil containing antibiotics in livestock and poultry manure.

Ecological Protection Techniques of Riverbank in Liaohe River, Northeast China

In the present experiment, we took a section of Liaohe River in east of Shuangan bridge Yingzhou District, Tieling as an example to study ecological slope protection technique of riverbank in an agricultural catchment. In order to assess the potential of the slope protection project, the length of new taproot, height of new branches, and base diameter of shoot were determined. The results showed that the pioneer species such as Salix suchowensis and Amorpha fruticosa are growing very well with strong root system and flourished branches, which can help control soil erosion effectively. Furthermore, the growth indexes of Salix suchowensis were higher than those of Amorpha fruticosa after five months growing. Along with the riverbank being reinforced by soil bioengineering technique, native plants have been in rapid restoration and biodiversity increases.

Plant-Microorganism Combined Remediation for Sediments Contaminated with Heavy Metals

In order to investigate the effects of four heavy metal tolerant microorganisms, Staphylococcus pasteuri (X1), Agrobacterium tumefaciens (X2), Penicillium chrysogenum (Z1) and Paecilomyces lavender (Z2), on heavy metals uptake by the heavy metal tolerance plant-maize and the cadmium hyperaccumulator plant-Beta vulgaris var. cicla L., a pot experiment with sediments was conducted. Through comparing the overall situations of four microorganisms’ role in enhancing maize and Beta vulgaris var. cicla L. to gather cadmium, lead, copper and zinc, plant biomasses, and enrichment characteristics, the combination of bacterium X2, fungus Z2 and these two plants can effectively repair these four heavy metals in sediments.

The Change of Environmental in Sewage Sludge Compost

By aerobic composting bin type of sewage treatment plant sludge composting, through periodic sampling, research composting process temperature, moisture content, PH value changes and study the changes in compost maturity parameters of the DH. The results show that the compost temperature increased rapidly in the early rise in the first two days when fast to 50 degrees Celsius, in the tenth day decreased to room temperature; moisture content than the original sludge reduced by 40 percent to compost indicators; PH by reaction initial 6.2, and gradually becomes neutral and alkaline 7.8 biased. Experiments show that after aerobic sludge composting in temperature, moisture content, PH value terms have been reached sludge disposal requirements.

Research of Antibiotics Pollution in Soil Environments and theirs Biological Degradation

With the increase of antibiotics usage, concerns on antibiotics contamination have been raised because of their serious environmental impacts in recent years. Antibiotics have become the emerging contaminants of soil. This paper reviews the pollution situation, the potential harm and the way of biodegradation of antibiotics in order to provide the reference to eliminate antibiotics pollution.

Health Risk Analysis for Pb Exposure of Human from Indoor Dust in Shenyang

The aim of this work was to study Pb accumulation in indoor dust, and health risk of human due to dust exposure. Risk assessment of Pb to human health: Pb is most harmful to human body. The reasons of non-carcinogenic risk in residential area may be that indoor is not swept regularly, in addition, indoor decoration, building materials and other factors may also affect the content of Pb in dust. Non-carcinogenic risk in children is not only more than adults but also beyond the safety threshold. Indoor dust has been a threat to the health of children in Shenyang.

Study on Plant-Microbial Remediation of Antibiotic and Heavy Metal Contaminated Soil

In the recent years, antibiotics and heavy metals have become common pollutants in soil. Plant-microbial remediation is promising for the management of antibiotics and heavy metals pollution in soil. This paper talks about the mechanization of plant-microbial remediation, finds the advantages and disadvantages about plant-microbial technology, summarizes the method of selection of the plant and microbial, influential factors, and discusses the future research priorities of plant-microbial remediation.

Application and Development of Artificial Floating Island Technology

As a rising phytoremediation technology, artificial floating island technology is increasingly used in wastewater purification. In this paper, studies on artificial floating islands at home and abroad were overviewed, including the variety of floating island, construction method of artificial floating island and the water improvement principle of artificial floating island. Artificial floating island technology is a kind of new ecological environment technology with many functions, such as pollutant purification, habitat restoration, ecosystem restoration, and landscape improvement. It has good application prospects in the area of comprehensive water body control.