A comprehensive review of microbial electrochemical systems as a platform technology.

Plant-bacteria partnerships for the remediation of hydrocarbon contaminated soils.

A comprehensive guide of remediation technologies for oil contaminated soil — Present works and future directions

A critical review on effects, tolerance mechanisms and management of cadmium in vegetables.

Heavy metal contamination of soil and water in the vicinity of an abandoned e-waste recycling site: implications for dissemination of heavy metals.

Phytoremediation of petroleum contaminated soils by Mirabilis Jalapa L. in a greenhouse plot experiment

Bioremediation is a cost-effective and eco- friendly approach to decontaminate soils polluted by petro- leum hydrocarbons. However, this technique usually requires a long time due to the slow degradation rate by bacteria. By applying U-tube microbial fuel cells (MFCs) designed here, the degradation rate of petroleum hydro- carbons close to the anode (<1 cm) was enhanced by 120% from 6.9 � 2.5% to 15.2 � 0.6% with simultaneous 125 � 7 C of charge output (0.85 � 0.05 mW/m 2 ,1 kV )i n the tested period (25 days). Hydrocarbon fingerprint analy- sis showed that the degradation rate of both alkanes and polycyclic aromatic hydrocarbons (PAHs) was accelerated. The decrease of initial water content from 33% to 28% and 23% resulted in a decrease on charge output and hydrocar- bon degradation rate, which could be attributed to the increase of internal resistance. A salt accumulation was observed in each reactor due to the evaporation of water from the air-cathode, possibly inhibited the activity of exoelectrogenic bacteria (EB) and resulted in the elimination of the current at the end of the tested period. The number of hydrocarbon degradation bacteria (HDB) in soil close to the anode increased by nearly two orders of magnitude in the MFC assisted system (373 � 56 � 10 3 CFU/g-soil) than that in the disconnected control (8 � 2 � 10 3 CFU/g-soil), pro- viding a solid evidence for in situ biostimulation of HDB growth by colonization of EB in the same system. Biotechnol. Bioeng. 2012;109: 426-433. 2011 Wiley Periodicals, Inc.

Bioelectrochemical stimulation of petroleum hydrocarbon degradation in saline soil using U-tube microbial fuel cells

Selecting a phytoextraction plant with moderate to high Cd-accumulating ability and high biomass based on the plant’s compatibility with mechanized cultivation techniques may yield more immediately practical results. In the present study, six Chinese cabbage cultivars were grown in three soils, ranging from 0.15 to 2.25 mg Cd kg–1 soil, to examine uptake and translocation of Cd in their tissues. The results indicated that the order of the shoot Cd concentration values in the cultivars was as follows: Beijingxiaoza 56 > Suancaiwang > Quansheng and Qiubo 60 > Xianfengkuaicai and Chunkang. Similar order was also found in the bioaccumulation factor (BAF), translocation factor (TF), and metal extraction ratio (MER). Several soil Cd fractions after Beijingxiaoza 56 harvesting decreased most. Beijingxiaoza 56 is thus promising for phytoextraction of Cd from soils with low to moderate (<2.25 mg kg–1) Cd contamination.

Evaluation of cadmium phytoremediation potential in Chinese cabbage cultivars.

Remediation of petroleum contaminated soils by joint action of Pharbitis nil L. and its microbial community

The invention relates to phytoremediation technology for organic poison polluted soil, in particular to a method for restoring petroleum hydrocarbon polluted soil by utilizing a plant, namely balsamine The balsamine is annual herbal flower, and the biomass is as high as 40 to 100 centimeters; petroleum hydrocarbon pollutant in the soil is degraded through the growth process, the development process, the blooming process and the fructification process of plant, namely the whole growth phase of the plant due to the action of root exudates and rhizosphere microorganisms of the plant and soil enzyme, and the petroleum hydrocarbon pollutant which pollutes the soil can be continuously degraded until the pollutant content of the soil meets the environmental safety standard by repeated planting of the plant and repeated implementation of the processes The method has the advantages of small damage to the environment, no need of treatment of the scene, no damage of the physicochemical properties of the soil, no secondary pollution, low cost, suitability for large-scale operation, pollution treatment and simultaneous environment beautification and so on

Zhineng Zhang

Papers

Phytoremediation of petroleum contaminated soils by Mirabilis Jalapa L. in a greenhouse plot experiment

Bioelectrochemical stimulation of petroleum hydrocarbon degradation in saline soil using U-tube microbial fuel cells

Evaluation of cadmium phytoremediation potential in Chinese cabbage cultivars.

Remediation of petroleum contaminated soils by joint action of Pharbitis nil L. and its microbial community

Method for repairing oil polluted soil using ornamental plant balsamine