Abstract: A method and apparatus concentrates, collects and removes heavy metals, other cations, and anions from media permitting generation of electrical fields. The heavy metals and other cations are electrochemically concentrated and precipitated for rapid removal from the aqueous media. The media, which may be aqueous, soils or wastes, is filtered and passed through a cation or anion exchange resin beds. Metals or anions are captured and held in the resin beds. Current is then applied through the resin beds using opposing electrodes of opposite polarity. In the metal removal units, heavy metals and other cations are concentrated around the negative electrode and lifted to a top of the electrode chamber using hydrogen gas lift. The concentrated solution of heavy metals and cations are removed from the chamber above the negative electrode and are circulated to provide additional time for growth and precipitation.

Abstract: A method and apparatus concentrates, collects and removes heavy metals, other cations, and anions from media permitting generation of electrical fields. The heavy metals and other cations are electrochemically concentrated and precipitated for rapid removal from the aqueous media. The media, which may be aqueous, soils or wastes, is filtered and passed through a cation or anion exchange resin beds. Metals or anions are captured and held in the resin beds. Current is then applied through the resin beds using opposing electrodes of opposite polarity. In the metal removal units, heavy metals and other cations are concentrated around the negative electrode and lifted to a top of the electrode chamber using hydrogen gas lift. The concentrated solution of heavy metals and cations are removed from the chamber above the negative electrode and are circulated to provide additional time for growth and precipitation.

Abstract: The invention relates to insitu bio-electrokinetic remediation of contaminated soil containing hazardous mixed wastes as organic pollutants and hazardous heavy metals. Bio-remediation of the organic pollutants is followed by removal of the hazardous material. Cultured micro-organisms, nutrients and growth factors are added to clean soil adjacent to contaminated soil. Positive anodes and negative cathodes are placed in the microbial-loaded clean soil adjacent to the contaminated soil. The negative cathode is closest to the interface of the clean and contaminated soil. DC current is applied between the electrodes and water containing cultured microorganisms is pushed by the electrokinetic pumping effect into the contaminated site. The acid generated at the anode is not allowed to enter the contaminated soil. Cultured microorganisms are introduced into clean soil on the opposite side of the contaminated soil. DC current is reversed to change the original anode to cathode and cathode to anode.

Abstract: Peptide derivatives of the formulaA--NH--R.sub.1 --CO].sub.x [NH--R.sub.2 --CO].sub.y NH--R.sub.3 --COOHin which A, R.sub.1, R.sub.2, R.sub.3, x, and y have the meaning specified in claim 1 and their physiologically acceptable salts and lower alkyl esters.These compounds have anti-inflammatory activity and pharmaceutical compositions containing them are described.

Abstract: Aminoacid and peptide derivatives of the formula:A--NH--R.sub.1 --CO].sub.x [NH--R.sub.2 --CO].sub.y NH--R.sub.4 --COOHin which A, R.sub.1, R.sub.2, x and y have the meanings specified in claim 1 for formula I, and R4 is a residue of an .alpha.-aminoacid which, when A is 4-allyloxy-3-chloro-phenylacetyl and x and y are 0, contains at least 2 carbon atoms, and their physiologically acceptable salts and lower alkyl ester.These compounds and 4-allyloxy-3-chloro-phenylacetylglycine have anti-inflammatory activity and pharmaceutical compositions containing them are described.